Home / 1,087,220.60-1,630,247.70-455,420.60

Finding the Fourth Proportional to 1,087,220.60, 1,630,247.70 and 455,420.60

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Solution

The fourth proportional to 1,087,220.60, 1,630,247.70 and 455,420.60 is: 682,886.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,220.60 : 1,630,247.70 = 455,420.60 : x
  2. Step 2: Convert to fraction form
    1,087,220.60/1,630,247.70 = 455,420.60/x
  3. Step 3: Cross multiply
    1,087,220.60x = 1,630,247.70 × 455,420.60
  4. Step 4: Simplify right side
    1,087,220.60x = 742,448,385,682.62
  5. Step 5: Solve for x
    x = 742,448,385,682.62/1,087,220.60
  6. Step 6: Final answer
    x = 682,886.61

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1.5x scale

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.