Home / 516,619.62-774,915.11-137,543.61

Finding the Fourth Proportional to 516,619.62, 774,915.11 and 137,543.61

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Solution

The fourth proportional to 516,619.62, 774,915.11 and 137,543.61 is: 206,311.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,619.62 : 774,915.11 = 137,543.61 : x
  2. Step 2: Convert to fraction form
    516,619.62/774,915.11 = 137,543.61/x
  3. Step 3: Cross multiply
    516,619.62x = 774,915.11 × 137,543.61
  4. Step 4: Simplify right side
    516,619.62x = 106,584,617,110.65
  5. Step 5: Solve for x
    x = 106,584,617,110.65/516,619.62
  6. Step 6: Final answer
    x = 206,311.59

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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.