Home / 690,901.25-1,036,351.87-269,881.88

Finding the Fourth Proportional to 690,901.25, 1,036,351.87 and 269,881.88

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Solution

The fourth proportional to 690,901.25, 1,036,351.87 and 269,881.88 is: 404,822.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,901.25 : 1,036,351.87 = 269,881.88 : x
  2. Step 2: Convert to fraction form
    690,901.25/1,036,351.87 = 269,881.88/x
  3. Step 3: Cross multiply
    690,901.25x = 1,036,351.87 × 269,881.88
  4. Step 4: Simplify right side
    690,901.25x = 279,692,585,160.65
  5. Step 5: Solve for x
    x = 279,692,585,160.65/690,901.25
  6. Step 6: Final answer
    x = 404,822.81

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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.