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Finding the Fourth Proportional to 482,502.83, 665,884.40 and 278,591.40

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Solution

The fourth proportional to 482,502.83, 665,884.40 and 278,591.40 is: 384,473.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,502.83 : 665,884.40 = 278,591.40 : x
  2. Step 2: Convert to fraction form
    482,502.83/665,884.40 = 278,591.40/x
  3. Step 3: Cross multiply
    482,502.83x = 665,884.40 × 278,591.40
  4. Step 4: Simplify right side
    482,502.83x = 185,509,665,841.20
  5. Step 5: Solve for x
    x = 185,509,665,841.20/482,502.83
  6. Step 6: Final answer
    x = 384,473.74

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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.