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Finding the Fourth Proportional to 539,843.28, 745,294.72 and 358,800.72

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Solution

The fourth proportional to 539,843.28, 745,294.72 and 358,800.72 is: 495,351.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,843.28 : 745,294.72 = 358,800.72 : x
  2. Step 2: Convert to fraction form
    539,843.28/745,294.72 = 358,800.72/x
  3. Step 3: Cross multiply
    539,843.28x = 745,294.72 × 358,800.72
  4. Step 4: Simplify right side
    539,843.28x = 267,412,282,148.20
  5. Step 5: Solve for x
    x = 267,412,282,148.20/539,843.28
  6. Step 6: Final answer
    x = 495,351.69

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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.