Home / 878,443.20-1,317,664.80-783,964.80

Finding the Fourth Proportional to 878,443.20, 1,317,664.80 and 783,964.80

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Solution

The fourth proportional to 878,443.20, 1,317,664.80 and 783,964.80 is: 1,175,947.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,443.20 : 1,317,664.80 = 783,964.80 : x
  2. Step 2: Convert to fraction form
    878,443.20/1,317,664.80 = 783,964.80/x
  3. Step 3: Cross multiply
    878,443.20x = 1,317,664.80 × 783,964.80
  4. Step 4: Simplify right side
    878,443.20x = 1,033,002,821,399.04
  5. Step 5: Solve for x
    x = 1,033,002,821,399.04/878,443.20
  6. Step 6: Final answer
    x = 1,175,947.20

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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.