Home / 1,125,489.96-1,687,723.02-485,490.60

Finding the Fourth Proportional to 1,125,489.96, 1,687,723.02 and 485,490.60

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Solution

The fourth proportional to 1,125,489.96, 1,687,723.02 and 485,490.60 is: 728,015.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,489.96 : 1,687,723.02 = 485,490.60 : x
  2. Step 2: Convert to fraction form
    1,125,489.96/1,687,723.02 = 485,490.60/x
  3. Step 3: Cross multiply
    1,125,489.96x = 1,687,723.02 × 485,490.60
  4. Step 4: Simplify right side
    1,125,489.96x = 819,373,661,613.61
  5. Step 5: Solve for x
    x = 819,373,661,613.61/1,125,489.96
  6. Step 6: Final answer
    x = 728,015.08

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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.