Home / 915,138.28-1,372,822.26-275,342.37

Finding the Fourth Proportional to 915,138.28, 1,372,822.26 and 275,342.37

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Solution

The fourth proportional to 915,138.28, 1,372,822.26 and 275,342.37 is: 413,048.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,138.28 : 1,372,822.26 = 275,342.37 : x
  2. Step 2: Convert to fraction form
    915,138.28/1,372,822.26 = 275,342.37/x
  3. Step 3: Cross multiply
    915,138.28x = 1,372,822.26 × 275,342.37
  4. Step 4: Simplify right side
    915,138.28x = 377,996,134,657.16
  5. Step 5: Solve for x
    x = 377,996,134,657.16/915,138.28
  6. Step 6: Final answer
    x = 413,048.11

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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.