Home / 2,665,144.80-3,995,092.80-1,317,515.40

Finding the Fourth Proportional to 2,665,144.80, 3,995,092.80 and 1,317,515.40

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Solution

The fourth proportional to 2,665,144.80, 3,995,092.80 and 1,317,515.40 is: 1,974,975.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,665,144.80 : 3,995,092.80 = 1,317,515.40 : x
  2. Step 2: Convert to fraction form
    2,665,144.80/3,995,092.80 = 1,317,515.40/x
  3. Step 3: Cross multiply
    2,665,144.80x = 3,995,092.80 × 1,317,515.40
  4. Step 4: Simplify right side
    2,665,144.80x = 5,263,596,288,429.12
  5. Step 5: Solve for x
    x = 5,263,596,288,429.12/2,665,144.80
  6. Step 6: Final answer
    x = 1,974,975.73

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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.