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Finding the Fourth Proportional to 391,717.03, 537,049.02 and 384,631.15

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Solution

The fourth proportional to 391,717.03, 537,049.02 and 384,631.15 is: 527,334.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,717.03 : 537,049.02 = 384,631.15 : x
  2. Step 2: Convert to fraction form
    391,717.03/537,049.02 = 384,631.15/x
  3. Step 3: Cross multiply
    391,717.03x = 537,049.02 × 384,631.15
  4. Step 4: Simplify right side
    391,717.03x = 206,565,781,207.40
  5. Step 5: Solve for x
    x = 206,565,781,207.40/391,717.03
  6. Step 6: Final answer
    x = 527,334.19

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.