Home / 815,540.20-1,223,310.30-605,588.20

Finding the Fourth Proportional to 815,540.20, 1,223,310.30 and 605,588.20

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Solution

The fourth proportional to 815,540.20, 1,223,310.30 and 605,588.20 is: 908,382.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,540.20 : 1,223,310.30 = 605,588.20 : x
  2. Step 2: Convert to fraction form
    815,540.20/1,223,310.30 = 605,588.20/x
  3. Step 3: Cross multiply
    815,540.20x = 1,223,310.30 × 605,588.20
  4. Step 4: Simplify right side
    815,540.20x = 740,822,282,618.46
  5. Step 5: Solve for x
    x = 740,822,282,618.46/815,540.20
  6. Step 6: Final answer
    x = 908,382.30

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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.