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Finding the Fourth Proportional to 542,685.92, 748,880.52 and 300,949.52

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Solution

The fourth proportional to 542,685.92, 748,880.52 and 300,949.52 is: 415,295.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,685.92 : 748,880.52 = 300,949.52 : x
  2. Step 2: Convert to fraction form
    542,685.92/748,880.52 = 300,949.52/x
  3. Step 3: Cross multiply
    542,685.92x = 748,880.52 × 300,949.52
  4. Step 4: Simplify right side
    542,685.92x = 225,375,233,031.35
  5. Step 5: Solve for x
    x = 225,375,233,031.35/542,685.92
  6. Step 6: Final answer
    x = 415,295.89

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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.