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Finding the Fourth Proportional to 391,167.92, 539,354.52 and 362,824.40

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Solution

The fourth proportional to 391,167.92, 539,354.52 and 362,824.40 is: 500,273.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,167.92 : 539,354.52 = 362,824.40 : x
  2. Step 2: Convert to fraction form
    391,167.92/539,354.52 = 362,824.40/x
  3. Step 3: Cross multiply
    391,167.92x = 539,354.52 × 362,824.40
  4. Step 4: Simplify right side
    391,167.92x = 195,690,980,106.29
  5. Step 5: Solve for x
    x = 195,690,980,106.29/391,167.92
  6. Step 6: Final answer
    x = 500,273.59

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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.