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Finding the Fourth Proportional to 487,291.75, 729,802.20 and 473,839.27

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Solution

The fourth proportional to 487,291.75, 729,802.20 and 473,839.27 is: 709,654.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,291.75 : 729,802.20 = 473,839.27 : x
  2. Step 2: Convert to fraction form
    487,291.75/729,802.20 = 473,839.27/x
  3. Step 3: Cross multiply
    487,291.75x = 729,802.20 × 473,839.27
  4. Step 4: Simplify right side
    487,291.75x = 345,808,941,644.79
  5. Step 5: Solve for x
    x = 345,808,941,644.79/487,291.75
  6. Step 6: Final answer
    x = 709,654.83

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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.