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Finding the Fourth Proportional to 575,179.20, 862,760.70 and 259,635.60

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Solution

The fourth proportional to 575,179.20, 862,760.70 and 259,635.60 is: 389,449.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,179.20 : 862,760.70 = 259,635.60 : x
  2. Step 2: Convert to fraction form
    575,179.20/862,760.70 = 259,635.60/x
  3. Step 3: Cross multiply
    575,179.20x = 862,760.70 × 259,635.60
  4. Step 4: Simplify right side
    575,179.20x = 224,003,392,000.92
  5. Step 5: Solve for x
    x = 224,003,392,000.92/575,179.20
  6. Step 6: Final answer
    x = 389,449.74

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1.5x scale

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.