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Finding the Fourth Proportional to 542,604.18, 748,832.13 and 300,909.90

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Solution

The fourth proportional to 542,604.18, 748,832.13 and 300,909.90 is: 415,276.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,604.18 : 748,832.13 = 300,909.90 : x
  2. Step 2: Convert to fraction form
    542,604.18/748,832.13 = 300,909.90/x
  3. Step 3: Cross multiply
    542,604.18x = 748,832.13 × 300,909.90
  4. Step 4: Simplify right side
    542,604.18x = 225,331,001,355.09
  5. Step 5: Solve for x
    x = 225,331,001,355.09/542,604.18
  6. Step 6: Final answer
    x = 415,276.94

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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.