Home / 2,165,758.56-2,988,710.64-1,198,868.40

Finding the Fourth Proportional to 2,165,758.56, 2,988,710.64 and 1,198,868.40

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Solution

The fourth proportional to 2,165,758.56, 2,988,710.64 and 1,198,868.40 is: 1,654,418.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,165,758.56 : 2,988,710.64 = 1,198,868.40 : x
  2. Step 2: Convert to fraction form
    2,165,758.56/2,988,710.64 = 1,198,868.40/x
  3. Step 3: Cross multiply
    2,165,758.56x = 2,988,710.64 × 1,198,868.40
  4. Step 4: Simplify right side
    2,165,758.56x = 3,583,070,743,039.78
  5. Step 5: Solve for x
    x = 3,583,070,743,039.78/2,165,758.56
  6. Step 6: Final answer
    x = 1,654,418.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.