Home / 791,253.49-1,091,930.07-428,679.85

Finding the Fourth Proportional to 791,253.49, 1,091,930.07 and 428,679.85

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Solution

The fourth proportional to 791,253.49, 1,091,930.07 and 428,679.85 is: 591,578.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,253.49 : 1,091,930.07 = 428,679.85 : x
  2. Step 2: Convert to fraction form
    791,253.49/1,091,930.07 = 428,679.85/x
  3. Step 3: Cross multiply
    791,253.49x = 1,091,930.07 × 428,679.85
  4. Step 4: Simplify right side
    791,253.49x = 468,088,418,618.09
  5. Step 5: Solve for x
    x = 468,088,418,618.09/791,253.49
  6. Step 6: Final answer
    x = 591,578.33

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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.