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Finding the Fourth Proportional to 502,008.77, 753,013.43 and 315,151.49

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Solution

The fourth proportional to 502,008.77, 753,013.43 and 315,151.49 is: 472,727.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,008.77 : 753,013.43 = 315,151.49 : x
  2. Step 2: Convert to fraction form
    502,008.77/753,013.43 = 315,151.49/x
  3. Step 3: Cross multiply
    502,008.77x = 753,013.43 × 315,151.49
  4. Step 4: Simplify right side
    502,008.77x = 237,313,302,878.75
  5. Step 5: Solve for x
    x = 237,313,302,878.75/502,008.77
  6. Step 6: Final answer
    x = 472,727.40

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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.