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Finding the Fourth Proportional to 487,732.62, 673,301.14 and 366,920

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Solution

The fourth proportional to 487,732.62, 673,301.14 and 366,920 is: 506,522.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,732.62 : 673,301.14 = 366,920 : x
  2. Step 2: Convert to fraction form
    487,732.62/673,301.14 = 366,920/x
  3. Step 3: Cross multiply
    487,732.62x = 673,301.14 × 366,920
  4. Step 4: Simplify right side
    487,732.62x = 247,047,654,288.80
  5. Step 5: Solve for x
    x = 247,047,654,288.80/487,732.62
  6. Step 6: Final answer
    x = 506,522.72

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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.