Home / 690,172.80-1,034,836.80-268,963.20

Finding the Fourth Proportional to 690,172.80, 1,034,836.80 and 268,963.20

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Solution

The fourth proportional to 690,172.80, 1,034,836.80 and 268,963.20 is: 403,280.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,172.80 : 1,034,836.80 = 268,963.20 : x
  2. Step 2: Convert to fraction form
    690,172.80/1,034,836.80 = 268,963.20/x
  3. Step 3: Cross multiply
    690,172.80x = 1,034,836.80 × 268,963.20
  4. Step 4: Simplify right side
    690,172.80x = 278,333,017,205.76
  5. Step 5: Solve for x
    x = 278,333,017,205.76/690,172.80
  6. Step 6: Final answer
    x = 403,280.19

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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.