Home / 878,515.28-1,317,794.56-247,424.88

Finding the Fourth Proportional to 878,515.28, 1,317,794.56 and 247,424.88

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Solution

The fourth proportional to 878,515.28, 1,317,794.56 and 247,424.88 is: 371,143.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,515.28 : 1,317,794.56 = 247,424.88 : x
  2. Step 2: Convert to fraction form
    878,515.28/1,317,794.56 = 247,424.88/x
  3. Step 3: Cross multiply
    878,515.28x = 1,317,794.56 × 247,424.88
  4. Step 4: Simplify right side
    878,515.28x = 326,055,160,872.65
  5. Step 5: Solve for x
    x = 326,055,160,872.65/878,515.28
  6. Step 6: Final answer
    x = 371,143.41

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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.