Home / 861,147.52-1,188,814.08-667,123.52

Finding the Fourth Proportional to 861,147.52, 1,188,814.08 and 667,123.52

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Solution

The fourth proportional to 861,147.52, 1,188,814.08 and 667,123.52 is: 920,963.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,147.52 : 1,188,814.08 = 667,123.52 : x
  2. Step 2: Convert to fraction form
    861,147.52/1,188,814.08 = 667,123.52/x
  3. Step 3: Cross multiply
    861,147.52x = 1,188,814.08 × 667,123.52
  4. Step 4: Simplify right side
    861,147.52x = 793,085,833,675.16
  5. Step 5: Solve for x
    x = 793,085,833,675.16/861,147.52
  6. Step 6: Final answer
    x = 920,963.96

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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.