Home / 690,708.53-1,036,202.92-217,283.78

Finding the Fourth Proportional to 690,708.53, 1,036,202.92 and 217,283.78

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Solution

The fourth proportional to 690,708.53, 1,036,202.92 and 217,283.78 is: 325,969.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,708.53 : 1,036,202.92 = 217,283.78 : x
  2. Step 2: Convert to fraction form
    690,708.53/1,036,202.92 = 217,283.78/x
  3. Step 3: Cross multiply
    690,708.53x = 1,036,202.92 × 217,283.78
  4. Step 4: Simplify right side
    690,708.53x = 225,150,087,304.64
  5. Step 5: Solve for x
    x = 225,150,087,304.64/690,708.53
  6. Step 6: Final answer
    x = 325,969.75

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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.