Home / 410,339.20-615,566.40-129,827.20

Finding the Fourth Proportional to 410,339.20, 615,566.40 and 129,827.20

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Solution

The fourth proportional to 410,339.20, 615,566.40 and 129,827.20 is: 194,759.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,339.20 : 615,566.40 = 129,827.20 : x
  2. Step 2: Convert to fraction form
    410,339.20/615,566.40 = 129,827.20/x
  3. Step 3: Cross multiply
    410,339.20x = 615,566.40 × 129,827.20
  4. Step 4: Simplify right side
    410,339.20x = 79,917,262,126.08
  5. Step 5: Solve for x
    x = 79,917,262,126.08/410,339.20
  6. Step 6: Final answer
    x = 194,759.02

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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.