Home / 415,713.28-623,592.18-131,382.20

Finding the Fourth Proportional to 415,713.28, 623,592.18 and 131,382.20

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Solution

The fourth proportional to 415,713.28, 623,592.18 and 131,382.20 is: 197,080.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,713.28 : 623,592.18 = 131,382.20 : x
  2. Step 2: Convert to fraction form
    415,713.28/623,592.18 = 131,382.20/x
  3. Step 3: Cross multiply
    415,713.28x = 623,592.18 × 131,382.20
  4. Step 4: Simplify right side
    415,713.28x = 81,928,914,254.94
  5. Step 5: Solve for x
    x = 81,928,914,254.94/415,713.28
  6. Step 6: Final answer
    x = 197,080.34

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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.