Home / 856,221.42-1,181,604.68-488,691.21

Finding the Fourth Proportional to 856,221.42, 1,181,604.68 and 488,691.21

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Solution

The fourth proportional to 856,221.42, 1,181,604.68 and 488,691.21 is: 674,404.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,221.42 : 1,181,604.68 = 488,691.21 : x
  2. Step 2: Convert to fraction form
    856,221.42/1,181,604.68 = 488,691.21/x
  3. Step 3: Cross multiply
    856,221.42x = 1,181,604.68 × 488,691.21
  4. Step 4: Simplify right side
    856,221.42x = 577,439,820,810.86
  5. Step 5: Solve for x
    x = 577,439,820,810.86/856,221.42
  6. Step 6: Final answer
    x = 674,404.78

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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.