Home / 878,411.20-1,317,616.80-783,932.80

Finding the Fourth Proportional to 878,411.20, 1,317,616.80 and 783,932.80

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Solution

The fourth proportional to 878,411.20, 1,317,616.80 and 783,932.80 is: 1,175,899.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,411.20 : 1,317,616.80 = 783,932.80 : x
  2. Step 2: Convert to fraction form
    878,411.20/1,317,616.80 = 783,932.80/x
  3. Step 3: Cross multiply
    878,411.20x = 1,317,616.80 × 783,932.80
  4. Step 4: Simplify right side
    878,411.20x = 1,032,923,027,351.04
  5. Step 5: Solve for x
    x = 1,032,923,027,351.04/878,411.20
  6. Step 6: Final answer
    x = 1,175,899.20

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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.