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Finding the Fourth Proportional to 542,011.23, 747,915.03 and 300,233.88

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Solution

The fourth proportional to 542,011.23, 747,915.03 and 300,233.88 is: 414,289.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,011.23 : 747,915.03 = 300,233.88 : x
  2. Step 2: Convert to fraction form
    542,011.23/747,915.03 = 300,233.88/x
  3. Step 3: Cross multiply
    542,011.23x = 747,915.03 × 300,233.88
  4. Step 4: Simplify right side
    542,011.23x = 224,549,431,367.22
  5. Step 5: Solve for x
    x = 224,549,431,367.22/542,011.23
  6. Step 6: Final answer
    x = 414,289.26

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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.