Home / 861,513.88-1,188,868.62-479,532.46

Finding the Fourth Proportional to 861,513.88, 1,188,868.62 and 479,532.46

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Solution

The fourth proportional to 861,513.88, 1,188,868.62 and 479,532.46 is: 661,743.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,513.88 : 1,188,868.62 = 479,532.46 : x
  2. Step 2: Convert to fraction form
    861,513.88/1,188,868.62 = 479,532.46/x
  3. Step 3: Cross multiply
    861,513.88x = 1,188,868.62 × 479,532.46
  4. Step 4: Simplify right side
    861,513.88x = 570,101,093,965.41
  5. Step 5: Solve for x
    x = 570,101,093,965.41/861,513.88
  6. Step 6: Final answer
    x = 661,743.37

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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.