Home / 692,891.40-1,039,121.10-272,296.20

Finding the Fourth Proportional to 692,891.40, 1,039,121.10 and 272,296.20

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Solution

The fourth proportional to 692,891.40, 1,039,121.10 and 272,296.20 is: 408,359.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,891.40 : 1,039,121.10 = 272,296.20 : x
  2. Step 2: Convert to fraction form
    692,891.40/1,039,121.10 = 272,296.20/x
  3. Step 3: Cross multiply
    692,891.40x = 1,039,121.10 × 272,296.20
  4. Step 4: Simplify right side
    692,891.40x = 282,948,726,869.82
  5. Step 5: Solve for x
    x = 282,948,726,869.82/692,891.40
  6. Step 6: Final answer
    x = 408,359.42

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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.