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Finding the Fourth Proportional to 425,329.27, 638,081.39 and 292,272.19

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Solution

The fourth proportional to 425,329.27, 638,081.39 and 292,272.19 is: 438,468.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,329.27 : 638,081.39 = 292,272.19 : x
  2. Step 2: Convert to fraction form
    425,329.27/638,081.39 = 292,272.19/x
  3. Step 3: Cross multiply
    425,329.27x = 638,081.39 × 292,272.19
  4. Step 4: Simplify right side
    425,329.27x = 186,493,445,253.54
  5. Step 5: Solve for x
    x = 186,493,445,253.54/425,329.27
  6. Step 6: Final answer
    x = 438,468.40

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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.