Home / 1,087,128.34-1,630,134.70-575,069.85

Finding the Fourth Proportional to 1,087,128.34, 1,630,134.70 and 575,069.85

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Solution

The fourth proportional to 1,087,128.34, 1,630,134.70 and 575,069.85 is: 862,309.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,128.34 : 1,630,134.70 = 575,069.85 : x
  2. Step 2: Convert to fraction form
    1,087,128.34/1,630,134.70 = 575,069.85/x
  3. Step 3: Cross multiply
    1,087,128.34x = 1,630,134.70 × 575,069.85
  4. Step 4: Simplify right side
    1,087,128.34x = 937,441,315,971.12
  5. Step 5: Solve for x
    x = 937,441,315,971.12/1,087,128.34
  6. Step 6: Final answer
    x = 862,309.70

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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.