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Finding the Fourth Proportional to 410,371.79, 615,539.45 and 126,050.85

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Solution

The fourth proportional to 410,371.79, 615,539.45 and 126,050.85 is: 189,070.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,371.79 : 615,539.45 = 126,050.85 : x
  2. Step 2: Convert to fraction form
    410,371.79/615,539.45 = 126,050.85/x
  3. Step 3: Cross multiply
    410,371.79x = 615,539.45 × 126,050.85
  4. Step 4: Simplify right side
    410,371.79x = 77,589,271,196.16
  5. Step 5: Solve for x
    x = 77,589,271,196.16/410,371.79
  6. Step 6: Final answer
    x = 189,070.68

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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.