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Finding the Fourth Proportional to 486,125.65, 670,891.59 and 268,377.60

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Solution

The fourth proportional to 486,125.65, 670,891.59 and 268,377.60 is: 370,382.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,125.65 : 670,891.59 = 268,377.60 : x
  2. Step 2: Convert to fraction form
    486,125.65/670,891.59 = 268,377.60/x
  3. Step 3: Cross multiply
    486,125.65x = 670,891.59 × 268,377.60
  4. Step 4: Simplify right side
    486,125.65x = 180,052,274,113.44
  5. Step 5: Solve for x
    x = 180,052,274,113.44/486,125.65
  6. Step 6: Final answer
    x = 370,382.17

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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.