Home / 861,517.56-1,188,808.34-499,057.86

Finding the Fourth Proportional to 861,517.56, 1,188,808.34 and 499,057.86

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Solution

The fourth proportional to 861,517.56, 1,188,808.34 and 499,057.86 is: 688,650.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,517.56 : 1,188,808.34 = 499,057.86 : x
  2. Step 2: Convert to fraction form
    861,517.56/1,188,808.34 = 499,057.86/x
  3. Step 3: Cross multiply
    861,517.56x = 1,188,808.34 × 499,057.86
  4. Step 4: Simplify right side
    861,517.56x = 593,284,146,110.55
  5. Step 5: Solve for x
    x = 593,284,146,110.55/861,517.56
  6. Step 6: Final answer
    x = 688,650.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.