Home / 690,342.70-1,034,898.45-269,520.70

Finding the Fourth Proportional to 690,342.70, 1,034,898.45 and 269,520.70

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Solution

The fourth proportional to 690,342.70, 1,034,898.45 and 269,520.70 is: 404,040.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,342.70 : 1,034,898.45 = 269,520.70 : x
  2. Step 2: Convert to fraction form
    690,342.70/1,034,898.45 = 269,520.70/x
  3. Step 3: Cross multiply
    690,342.70x = 1,034,898.45 × 269,520.70
  4. Step 4: Simplify right side
    690,342.70x = 278,926,554,672.92
  5. Step 5: Solve for x
    x = 278,926,554,672.92/690,342.70
  6. Step 6: Final answer
    x = 404,040.71

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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.