Home / 1,278,286.80-1,918,121.40-568,424.40

Finding the Fourth Proportional to 1,278,286.80, 1,918,121.40 and 568,424.40

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Solution

The fourth proportional to 1,278,286.80, 1,918,121.40 and 568,424.40 is: 852,943.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,286.80 : 1,918,121.40 = 568,424.40 : x
  2. Step 2: Convert to fraction form
    1,278,286.80/1,918,121.40 = 568,424.40/x
  3. Step 3: Cross multiply
    1,278,286.80x = 1,918,121.40 × 568,424.40
  4. Step 4: Simplify right side
    1,278,286.80x = 1,090,307,005,922.16
  5. Step 5: Solve for x
    x = 1,090,307,005,922.16/1,278,286.80
  6. Step 6: Final answer
    x = 852,943.96

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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.