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Finding the Fourth Proportional to 542,757.06, 748,514.70 and 338,826.78

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Solution

The fourth proportional to 542,757.06, 748,514.70 and 338,826.78 is: 467,275.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,757.06 : 748,514.70 = 338,826.78 : x
  2. Step 2: Convert to fraction form
    542,757.06/748,514.70 = 338,826.78/x
  3. Step 3: Cross multiply
    542,757.06x = 748,514.70 × 338,826.78
  4. Step 4: Simplify right side
    542,757.06x = 253,616,825,583.67
  5. Step 5: Solve for x
    x = 253,616,825,583.67/542,757.06
  6. Step 6: Final answer
    x = 467,275.04

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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.