Home / 1,247,905.62-1,722,109.92-674,945.79

Finding the Fourth Proportional to 1,247,905.62, 1,722,109.92 and 674,945.79

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Solution

The fourth proportional to 1,247,905.62, 1,722,109.92 and 674,945.79 is: 931,425.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,905.62 : 1,722,109.92 = 674,945.79 : x
  2. Step 2: Convert to fraction form
    1,247,905.62/1,722,109.92 = 674,945.79/x
  3. Step 3: Cross multiply
    1,247,905.62x = 1,722,109.92 × 674,945.79
  4. Step 4: Simplify right side
    1,247,905.62x = 1,162,330,840,546.84
  5. Step 5: Solve for x
    x = 1,162,330,840,546.84/1,247,905.62
  6. Step 6: Final answer
    x = 931,425.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.