Home / 878,161.28-1,211,863.80-475,753.28

Finding the Fourth Proportional to 878,161.28, 1,211,863.80 and 475,753.28

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Solution

The fourth proportional to 878,161.28, 1,211,863.80 and 475,753.28 is: 656,540.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,161.28 : 1,211,863.80 = 475,753.28 : x
  2. Step 2: Convert to fraction form
    878,161.28/1,211,863.80 = 475,753.28/x
  3. Step 3: Cross multiply
    878,161.28x = 1,211,863.80 × 475,753.28
  4. Step 4: Simplify right side
    878,161.28x = 576,548,177,763.26
  5. Step 5: Solve for x
    x = 576,548,177,763.26/878,161.28
  6. Step 6: Final answer
    x = 656,540.19

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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.