Home / 729,432.12-1,007,078.64-500,373.12

Finding the Fourth Proportional to 729,432.12, 1,007,078.64 and 500,373.12

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Solution

The fourth proportional to 729,432.12, 1,007,078.64 and 500,373.12 is: 690,832.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,432.12 : 1,007,078.64 = 500,373.12 : x
  2. Step 2: Convert to fraction form
    729,432.12/1,007,078.64 = 500,373.12/x
  3. Step 3: Cross multiply
    729,432.12x = 1,007,078.64 × 500,373.12
  4. Step 4: Simplify right side
    729,432.12x = 503,915,081,182.16
  5. Step 5: Solve for x
    x = 503,915,081,182.16/729,432.12
  6. Step 6: Final answer
    x = 690,832.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.