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Finding the Fourth Proportional to 542,220.42, 748,269.69 and 300,508.32

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Solution

The fourth proportional to 542,220.42, 748,269.69 and 300,508.32 is: 414,704.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,220.42 : 748,269.69 = 300,508.32 : x
  2. Step 2: Convert to fraction form
    542,220.42/748,269.69 = 300,508.32/x
  3. Step 3: Cross multiply
    542,220.42x = 748,269.69 × 300,508.32
  4. Step 4: Simplify right side
    542,220.42x = 224,861,267,448.82
  5. Step 5: Solve for x
    x = 224,861,267,448.82/542,220.42
  6. Step 6: Final answer
    x = 414,704.54

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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.