Home / 815,637.50-1,223,716.26-342,195.74

Finding the Fourth Proportional to 815,637.50, 1,223,716.26 and 342,195.74

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Solution

The fourth proportional to 815,637.50, 1,223,716.26 and 342,195.74 is: 513,402.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,637.50 : 1,223,716.26 = 342,195.74 : x
  2. Step 2: Convert to fraction form
    815,637.50/1,223,716.26 = 342,195.74/x
  3. Step 3: Cross multiply
    815,637.50x = 1,223,716.26 × 342,195.74
  4. Step 4: Simplify right side
    815,637.50x = 418,750,491,140.73
  5. Step 5: Solve for x
    x = 418,750,491,140.73/815,637.50
  6. Step 6: Final answer
    x = 513,402.70

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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.