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Finding the Fourth Proportional to 424,708.48, 637,456.56 and 214,493.92

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Solution

The fourth proportional to 424,708.48, 637,456.56 and 214,493.92 is: 321,939.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,708.48 : 637,456.56 = 214,493.92 : x
  2. Step 2: Convert to fraction form
    424,708.48/637,456.56 = 214,493.92/x
  3. Step 3: Cross multiply
    424,708.48x = 637,456.56 × 214,493.92
  4. Step 4: Simplify right side
    424,708.48x = 136,730,556,384.12
  5. Step 5: Solve for x
    x = 136,730,556,384.12/424,708.48
  6. Step 6: Final answer
    x = 321,939.78

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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.