Home / 865,147.68-1,297,724.56-266,104.80

Finding the Fourth Proportional to 865,147.68, 1,297,724.56 and 266,104.80

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Solution

The fourth proportional to 865,147.68, 1,297,724.56 and 266,104.80 is: 399,158.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,147.68 : 1,297,724.56 = 266,104.80 : x
  2. Step 2: Convert to fraction form
    865,147.68/1,297,724.56 = 266,104.80/x
  3. Step 3: Cross multiply
    865,147.68x = 1,297,724.56 × 266,104.80
  4. Step 4: Simplify right side
    865,147.68x = 345,330,734,493.89
  5. Step 5: Solve for x
    x = 345,330,734,493.89/865,147.68
  6. Step 6: Final answer
    x = 399,158.14

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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.