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Finding the Fourth Proportional to 664,954.80, 997,432.20 and 462,001.20

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Solution

The fourth proportional to 664,954.80, 997,432.20 and 462,001.20 is: 693,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,954.80 : 997,432.20 = 462,001.20 : x
  2. Step 2: Convert to fraction form
    664,954.80/997,432.20 = 462,001.20/x
  3. Step 3: Cross multiply
    664,954.80x = 997,432.20 × 462,001.20
  4. Step 4: Simplify right side
    664,954.80x = 460,814,873,318.64
  5. Step 5: Solve for x
    x = 460,814,873,318.64/664,954.80
  6. Step 6: Final answer
    x = 693,001.80

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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.