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Finding the Fourth Proportional to 542,441.58, 748,613.58 and 300,799.92

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Solution

The fourth proportional to 542,441.58, 748,613.58 and 300,799.92 is: 415,128.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,441.58 : 748,613.58 = 300,799.92 : x
  2. Step 2: Convert to fraction form
    542,441.58/748,613.58 = 300,799.92/x
  3. Step 3: Cross multiply
    542,441.58x = 748,613.58 × 300,799.92
  4. Step 4: Simplify right side
    542,441.58x = 225,182,904,974.91
  5. Step 5: Solve for x
    x = 225,182,904,974.91/542,441.58
  6. Step 6: Final answer
    x = 415,128.40

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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.