Home / 664,727.60-997,237.20-327,929.60

Finding the Fourth Proportional to 664,727.60, 997,237.20 and 327,929.60

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Solution

The fourth proportional to 664,727.60, 997,237.20 and 327,929.60 is: 491,966.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,727.60 : 997,237.20 = 327,929.60 : x
  2. Step 2: Convert to fraction form
    664,727.60/997,237.20 = 327,929.60/x
  3. Step 3: Cross multiply
    664,727.60x = 997,237.20 × 327,929.60
  4. Step 4: Simplify right side
    664,727.60x = 327,023,596,101.12
  5. Step 5: Solve for x
    x = 327,023,596,101.12/664,727.60
  6. Step 6: Final answer
    x = 491,966.33

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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.