Home / 908,559.40-1,253,866.85-500,660.54

Finding the Fourth Proportional to 908,559.40, 1,253,866.85 and 500,660.54

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Solution

The fourth proportional to 908,559.40, 1,253,866.85 and 500,660.54 is: 690,941.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,559.40 : 1,253,866.85 = 500,660.54 : x
  2. Step 2: Convert to fraction form
    908,559.40/1,253,866.85 = 500,660.54/x
  3. Step 3: Cross multiply
    908,559.40x = 1,253,866.85 × 500,660.54
  4. Step 4: Simplify right side
    908,559.40x = 627,761,656,717.94
  5. Step 5: Solve for x
    x = 627,761,656,717.94/908,559.40
  6. Step 6: Final answer
    x = 690,941.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.