Home / 915,162.44-1,372,743.66-316,138.28

Finding the Fourth Proportional to 915,162.44, 1,372,743.66 and 316,138.28

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Solution

The fourth proportional to 915,162.44, 1,372,743.66 and 316,138.28 is: 474,207.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,162.44 : 1,372,743.66 = 316,138.28 : x
  2. Step 2: Convert to fraction form
    915,162.44/1,372,743.66 = 316,138.28/x
  3. Step 3: Cross multiply
    915,162.44x = 1,372,743.66 × 316,138.28
  4. Step 4: Simplify right side
    915,162.44x = 433,976,819,553.31
  5. Step 5: Solve for x
    x = 433,976,819,553.31/915,162.44
  6. Step 6: Final answer
    x = 474,207.42

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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.