Home / 815,287.68-1,223,124.66-801,731.88

Finding the Fourth Proportional to 815,287.68, 1,223,124.66 and 801,731.88

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Solution

The fourth proportional to 815,287.68, 1,223,124.66 and 801,731.88 is: 1,202,787.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,287.68 : 1,223,124.66 = 801,731.88 : x
  2. Step 2: Convert to fraction form
    815,287.68/1,223,124.66 = 801,731.88/x
  3. Step 3: Cross multiply
    815,287.68x = 1,223,124.66 × 801,731.88
  4. Step 4: Simplify right side
    815,287.68x = 980,618,033,136.16
  5. Step 5: Solve for x
    x = 980,618,033,136.16/815,287.68
  6. Step 6: Final answer
    x = 1,202,787.75

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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.