Home / 915,120.75-1,372,882.14-375,380.22

Finding the Fourth Proportional to 915,120.75, 1,372,882.14 and 375,380.22

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Solution

The fourth proportional to 915,120.75, 1,372,882.14 and 375,380.22 is: 563,152.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,120.75 : 1,372,882.14 = 375,380.22 : x
  2. Step 2: Convert to fraction form
    915,120.75/1,372,882.14 = 375,380.22/x
  3. Step 3: Cross multiply
    915,120.75x = 1,372,882.14 × 375,380.22
  4. Step 4: Simplify right side
    915,120.75x = 515,352,799,747.27
  5. Step 5: Solve for x
    x = 515,352,799,747.27/915,120.75
  6. Step 6: Final answer
    x = 563,152.79

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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.