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Finding the Fourth Proportional to 664,329.90, 996,494.85 and 310,035.90

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Solution

The fourth proportional to 664,329.90, 996,494.85 and 310,035.90 is: 465,053.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,329.90 : 996,494.85 = 310,035.90 : x
  2. Step 2: Convert to fraction form
    664,329.90/996,494.85 = 310,035.90/x
  3. Step 3: Cross multiply
    664,329.90x = 996,494.85 × 310,035.90
  4. Step 4: Simplify right side
    664,329.90x = 308,949,177,665.12
  5. Step 5: Solve for x
    x = 308,949,177,665.12/664,329.90
  6. Step 6: Final answer
    x = 465,053.85

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Similar ratio
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1.5x scale

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.