Home / 791,047.29-1,091,645.30-428,471.15

Finding the Fourth Proportional to 791,047.29, 1,091,645.30 and 428,471.15

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Solution

The fourth proportional to 791,047.29, 1,091,645.30 and 428,471.15 is: 591,290.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,047.29 : 1,091,645.30 = 428,471.15 : x
  2. Step 2: Convert to fraction form
    791,047.29/1,091,645.30 = 428,471.15/x
  3. Step 3: Cross multiply
    791,047.29x = 1,091,645.30 × 428,471.15
  4. Step 4: Simplify right side
    791,047.29x = 467,738,517,229.78
  5. Step 5: Solve for x
    x = 467,738,517,229.78/791,047.29
  6. Step 6: Final answer
    x = 591,290.21

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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.