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Finding the Fourth Proportional to 542,282.10, 748,336.32 and 300,559.47

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Solution

The fourth proportional to 542,282.10, 748,336.32 and 300,559.47 is: 414,764.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,282.10 : 748,336.32 = 300,559.47 : x
  2. Step 2: Convert to fraction form
    542,282.10/748,336.32 = 300,559.47/x
  3. Step 3: Cross multiply
    542,282.10x = 748,336.32 × 300,559.47
  4. Step 4: Simplify right side
    542,282.10x = 224,919,567,720.95
  5. Step 5: Solve for x
    x = 224,919,567,720.95/542,282.10
  6. Step 6: Final answer
    x = 414,764.88

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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.