Home / 992,738.80-1,489,723.80-519,763.60

Finding the Fourth Proportional to 992,738.80, 1,489,723.80 and 519,763.60

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Solution

The fourth proportional to 992,738.80, 1,489,723.80 and 519,763.60 is: 779,967.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,738.80 : 1,489,723.80 = 519,763.60 : x
  2. Step 2: Convert to fraction form
    992,738.80/1,489,723.80 = 519,763.60/x
  3. Step 3: Cross multiply
    992,738.80x = 1,489,723.80 × 519,763.60
  4. Step 4: Simplify right side
    992,738.80x = 774,304,205,293.68
  5. Step 5: Solve for x
    x = 774,304,205,293.68/992,738.80
  6. Step 6: Final answer
    x = 779,967.71

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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.