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Finding the Fourth Proportional to 542,684.92, 748,879.14 and 300,948.52

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Solution

The fourth proportional to 542,684.92, 748,879.14 and 300,948.52 is: 415,294.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,684.92 : 748,879.14 = 300,948.52 : x
  2. Step 2: Convert to fraction form
    542,684.92/748,879.14 = 300,948.52/x
  3. Step 3: Cross multiply
    542,684.92x = 748,879.14 × 300,948.52
  4. Step 4: Simplify right side
    542,684.92x = 225,374,068,841.87
  5. Step 5: Solve for x
    x = 225,374,068,841.87/542,684.92
  6. Step 6: Final answer
    x = 415,294.51

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1.5x scale

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.