Home / 690,847.27-1,036,307.90-217,569.49

Finding the Fourth Proportional to 690,847.27, 1,036,307.90 and 217,569.49

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Solution

The fourth proportional to 690,847.27, 1,036,307.90 and 217,569.49 is: 326,365.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,847.27 : 1,036,307.90 = 217,569.49 : x
  2. Step 2: Convert to fraction form
    690,847.27/1,036,307.90 = 217,569.49/x
  3. Step 3: Cross multiply
    690,847.27x = 1,036,307.90 × 217,569.49
  4. Step 4: Simplify right side
    690,847.27x = 225,468,980,198.12
  5. Step 5: Solve for x
    x = 225,468,980,198.12/690,847.27
  6. Step 6: Final answer
    x = 326,365.88

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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.