Home / 709,129.28-1,063,685.72-203,702.65

Finding the Fourth Proportional to 709,129.28, 1,063,685.72 and 203,702.65

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Solution

The fourth proportional to 709,129.28, 1,063,685.72 and 203,702.65 is: 305,551.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,129.28 : 1,063,685.72 = 203,702.65 : x
  2. Step 2: Convert to fraction form
    709,129.28/1,063,685.72 = 203,702.65/x
  3. Step 3: Cross multiply
    709,129.28x = 1,063,685.72 × 203,702.65
  4. Step 4: Simplify right side
    709,129.28x = 216,675,597,781.20
  5. Step 5: Solve for x
    x = 216,675,597,781.20/709,129.28
  6. Step 6: Final answer
    x = 305,551.62

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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.