Home / 695,184.21-1,042,395.33-215,278.78

Finding the Fourth Proportional to 695,184.21, 1,042,395.33 and 215,278.78

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Solution

The fourth proportional to 695,184.21, 1,042,395.33 and 215,278.78 is: 322,800.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,184.21 : 1,042,395.33 = 215,278.78 : x
  2. Step 2: Convert to fraction form
    695,184.21/1,042,395.33 = 215,278.78/x
  3. Step 3: Cross multiply
    695,184.21x = 1,042,395.33 × 215,278.78
  4. Step 4: Simplify right side
    695,184.21x = 224,405,593,843.70
  5. Step 5: Solve for x
    x = 224,405,593,843.70/695,184.21
  6. Step 6: Final answer
    x = 322,800.19

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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.