Home / 791,279.52-1,091,965.95-428,705.88

Finding the Fourth Proportional to 791,279.52, 1,091,965.95 and 428,705.88

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Solution

The fourth proportional to 791,279.52, 1,091,965.95 and 428,705.88 is: 591,614.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,279.52 : 1,091,965.95 = 428,705.88 : x
  2. Step 2: Convert to fraction form
    791,279.52/1,091,965.95 = 428,705.88/x
  3. Step 3: Cross multiply
    791,279.52x = 1,091,965.95 × 428,705.88
  4. Step 4: Simplify right side
    791,279.52x = 468,132,223,524.79
  5. Step 5: Solve for x
    x = 468,132,223,524.79/791,279.52
  6. Step 6: Final answer
    x = 591,614.23

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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.