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Finding the Fourth Proportional to 664,248.40, 996,469.80 and 348,729.10

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Solution

The fourth proportional to 664,248.40, 996,469.80 and 348,729.10 is: 523,144.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,248.40 : 996,469.80 = 348,729.10 : x
  2. Step 2: Convert to fraction form
    664,248.40/996,469.80 = 348,729.10/x
  3. Step 3: Cross multiply
    664,248.40x = 996,469.80 × 348,729.10
  4. Step 4: Simplify right side
    664,248.40x = 347,498,016,531.18
  5. Step 5: Solve for x
    x = 347,498,016,531.18/664,248.40
  6. Step 6: Final answer
    x = 523,144.68

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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.