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Finding the Fourth Proportional to 502,962.20, 754,443.30 and 343,529.90

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Solution

The fourth proportional to 502,962.20, 754,443.30 and 343,529.90 is: 515,294.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,962.20 : 754,443.30 = 343,529.90 : x
  2. Step 2: Convert to fraction form
    502,962.20/754,443.30 = 343,529.90/x
  3. Step 3: Cross multiply
    502,962.20x = 754,443.30 × 343,529.90
  4. Step 4: Simplify right side
    502,962.20x = 259,173,831,404.67
  5. Step 5: Solve for x
    x = 259,173,831,404.67/502,962.20
  6. Step 6: Final answer
    x = 515,294.85

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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.