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Finding the Fourth Proportional to 521,956.71, 720,350.82 and 292,552.97

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Solution

The fourth proportional to 521,956.71, 720,350.82 and 292,552.97 is: 403,751.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,956.71 : 720,350.82 = 292,552.97 : x
  2. Step 2: Convert to fraction form
    521,956.71/720,350.82 = 292,552.97/x
  3. Step 3: Cross multiply
    521,956.71x = 720,350.82 × 292,552.97
  4. Step 4: Simplify right side
    521,956.71x = 210,740,768,231.18
  5. Step 5: Solve for x
    x = 210,740,768,231.18/521,956.71
  6. Step 6: Final answer
    x = 403,751.43

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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.