Home / 992,721.22-1,489,245.85-393,685.52

Finding the Fourth Proportional to 992,721.22, 1,489,245.85 and 393,685.52

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Solution

The fourth proportional to 992,721.22, 1,489,245.85 and 393,685.52 is: 590,593.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,721.22 : 1,489,245.85 = 393,685.52 : x
  2. Step 2: Convert to fraction form
    992,721.22/1,489,245.85 = 393,685.52/x
  3. Step 3: Cross multiply
    992,721.22x = 1,489,245.85 × 393,685.52
  4. Step 4: Simplify right side
    992,721.22x = 586,294,519,910.97
  5. Step 5: Solve for x
    x = 586,294,519,910.97/992,721.22
  6. Step 6: Final answer
    x = 590,593.32

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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.