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Finding the Fourth Proportional to 510,542.69, 704,565.68 and 281,123.69

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Solution

The fourth proportional to 510,542.69, 704,565.68 and 281,123.69 is: 387,959.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,542.69 : 704,565.68 = 281,123.69 : x
  2. Step 2: Convert to fraction form
    510,542.69/704,565.68 = 281,123.69/x
  3. Step 3: Cross multiply
    510,542.69x = 704,565.68 × 281,123.69
  4. Step 4: Simplify right side
    510,542.69x = 198,070,098,880.51
  5. Step 5: Solve for x
    x = 198,070,098,880.51/510,542.69
  6. Step 6: Final answer
    x = 387,959.92

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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.