Home / 412,844.60-619,382.10-202,489.40

Finding the Fourth Proportional to 412,844.60, 619,382.10 and 202,489.40

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Solution

The fourth proportional to 412,844.60, 619,382.10 and 202,489.40 is: 303,790.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,844.60 : 619,382.10 = 202,489.40 : x
  2. Step 2: Convert to fraction form
    412,844.60/619,382.10 = 202,489.40/x
  3. Step 3: Cross multiply
    412,844.60x = 619,382.10 × 202,489.40
  4. Step 4: Simplify right side
    412,844.60x = 125,418,309,799.74
  5. Step 5: Solve for x
    x = 125,418,309,799.74/412,844.60
  6. Step 6: Final answer
    x = 303,790.60

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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.