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Finding the Fourth Proportional to 423,672.27, 635,314.38 and 252,971.47

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Solution

The fourth proportional to 423,672.27, 635,314.38 and 252,971.47 is: 379,341.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,672.27 : 635,314.38 = 252,971.47 : x
  2. Step 2: Convert to fraction form
    423,672.27/635,314.38 = 252,971.47/x
  3. Step 3: Cross multiply
    423,672.27x = 635,314.38 × 252,971.47
  4. Step 4: Simplify right side
    423,672.27x = 160,716,412,620.74
  5. Step 5: Solve for x
    x = 160,716,412,620.74/423,672.27
  6. Step 6: Final answer
    x = 379,341.35

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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.