Home / 620,630,120,108.90-930,945,180,163.35-620,630,120,108.90

Finding the Fourth Proportional to 620,630,120,108.90, 930,945,180,163.35 and 620,630,120,108.90

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Solution

The fourth proportional to 620,630,120,108.90, 930,945,180,163.35 and 620,630,120,108.90 is: 930,945,180,163.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,630,120,108.90 : 930,945,180,163.35 = 620,630,120,108.90 : x
  2. Step 2: Convert to fraction form
    620,630,120,108.90/930,945,180,163.35 = 620,630,120,108.90/x
  3. Step 3: Cross multiply
    620,630,120,108.90x = 930,945,180,163.35 × 620,630,120,108.90
  4. Step 4: Simplify right side
    620,630,120,108.90x = 577,772,618,979,581,454,450,688
  5. Step 5: Solve for x
    x = 577,772,618,979,581,454,450,688/620,630,120,108.90
  6. Step 6: Final answer
    x = 930,945,180,163.35

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.