Home / 781,778.80-1,172,668.20-738,233.20

Finding the Fourth Proportional to 781,778.80, 1,172,668.20 and 738,233.20

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Solution

The fourth proportional to 781,778.80, 1,172,668.20 and 738,233.20 is: 1,107,349.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,778.80 : 1,172,668.20 = 738,233.20 : x
  2. Step 2: Convert to fraction form
    781,778.80/1,172,668.20 = 738,233.20/x
  3. Step 3: Cross multiply
    781,778.80x = 1,172,668.20 × 738,233.20
  4. Step 4: Simplify right side
    781,778.80x = 865,702,597,824.24
  5. Step 5: Solve for x
    x = 865,702,597,824.24/781,778.80
  6. Step 6: Final answer
    x = 1,107,349.80

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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.