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Finding the Fourth Proportional to 497,384.70, 744,489.45 and 392,408.70

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Solution

The fourth proportional to 497,384.70, 744,489.45 and 392,408.70 is: 587,360.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,384.70 : 744,489.45 = 392,408.70 : x
  2. Step 2: Convert to fraction form
    497,384.70/744,489.45 = 392,408.70/x
  3. Step 3: Cross multiply
    497,384.70x = 744,489.45 × 392,408.70
  4. Step 4: Simplify right side
    497,384.70x = 292,144,137,238.22
  5. Step 5: Solve for x
    x = 292,144,137,238.22/497,384.70
  6. Step 6: Final answer
    x = 587,360.52

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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.