Home / 878,640.80-1,317,961.20-524,055.20

Finding the Fourth Proportional to 878,640.80, 1,317,961.20 and 524,055.20

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Solution

The fourth proportional to 878,640.80, 1,317,961.20 and 524,055.20 is: 786,082.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,640.80 : 1,317,961.20 = 524,055.20 : x
  2. Step 2: Convert to fraction form
    878,640.80/1,317,961.20 = 524,055.20/x
  3. Step 3: Cross multiply
    878,640.80x = 1,317,961.20 × 524,055.20
  4. Step 4: Simplify right side
    878,640.80x = 690,684,420,258.24
  5. Step 5: Solve for x
    x = 690,684,420,258.24/878,640.80
  6. Step 6: Final answer
    x = 786,082.80

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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.