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Finding the Fourth Proportional to 664,277.40, 996,513.30 and 348,758.10

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Solution

The fourth proportional to 664,277.40, 996,513.30 and 348,758.10 is: 523,188.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,277.40 : 996,513.30 = 348,758.10 : x
  2. Step 2: Convert to fraction form
    664,277.40/996,513.30 = 348,758.10/x
  3. Step 3: Cross multiply
    664,277.40x = 996,513.30 × 348,758.10
  4. Step 4: Simplify right side
    664,277.40x = 347,542,085,132.73
  5. Step 5: Solve for x
    x = 347,542,085,132.73/664,277.40
  6. Step 6: Final answer
    x = 523,188.18

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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.