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Finding the Fourth Proportional to 497,449.20, 744,586.20 and 392,473.20

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Solution

The fourth proportional to 497,449.20, 744,586.20 and 392,473.20 is: 587,457.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,449.20 : 744,586.20 = 392,473.20 : x
  2. Step 2: Convert to fraction form
    497,449.20/744,586.20 = 392,473.20/x
  3. Step 3: Cross multiply
    497,449.20x = 744,586.20 × 392,473.20
  4. Step 4: Simplify right side
    497,449.20x = 292,230,128,589.84
  5. Step 5: Solve for x
    x = 292,230,128,589.84/497,449.20
  6. Step 6: Final answer
    x = 587,457.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.