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Finding the Fourth Proportional to 542,333.27, 748,455.91 and 300,626.03

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Solution

The fourth proportional to 542,333.27, 748,455.91 and 300,626.03 is: 414,883.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,333.27 : 748,455.91 = 300,626.03 : x
  2. Step 2: Convert to fraction form
    542,333.27/748,455.91 = 300,626.03/x
  3. Step 3: Cross multiply
    542,333.27x = 748,455.91 × 300,626.03
  4. Step 4: Simplify right side
    542,333.27x = 225,005,329,972.91
  5. Step 5: Solve for x
    x = 225,005,329,972.91/542,333.27
  6. Step 6: Final answer
    x = 414,883.88

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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.