Home / 690,178.80-1,034,845.80-268,969.20

Finding the Fourth Proportional to 690,178.80, 1,034,845.80 and 268,969.20

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Solution

The fourth proportional to 690,178.80, 1,034,845.80 and 268,969.20 is: 403,289.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,178.80 : 1,034,845.80 = 268,969.20 : x
  2. Step 2: Convert to fraction form
    690,178.80/1,034,845.80 = 268,969.20/x
  3. Step 3: Cross multiply
    690,178.80x = 1,034,845.80 × 268,969.20
  4. Step 4: Simplify right side
    690,178.80x = 278,341,646,949.36
  5. Step 5: Solve for x
    x = 278,341,646,949.36/690,178.80
  6. Step 6: Final answer
    x = 403,289.19

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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.