Home / 1,987,713.70-2,981,570.55-491,805.70

Finding the Fourth Proportional to 1,987,713.70, 2,981,570.55 and 491,805.70

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Solution

The fourth proportional to 1,987,713.70, 2,981,570.55 and 491,805.70 is: 737,708.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,713.70 : 2,981,570.55 = 491,805.70 : x
  2. Step 2: Convert to fraction form
    1,987,713.70/2,981,570.55 = 491,805.70/x
  3. Step 3: Cross multiply
    1,987,713.70x = 2,981,570.55 × 491,805.70
  4. Step 4: Simplify right side
    1,987,713.70x = 1,466,353,391,442.14
  5. Step 5: Solve for x
    x = 1,466,353,391,442.14/1,987,713.70
  6. Step 6: Final answer
    x = 737,708.55

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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.