Home / 1,397,974.20-2,092,295.70-978,070.20

Finding the Fourth Proportional to 1,397,974.20, 2,092,295.70 and 978,070.20

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Solution

The fourth proportional to 1,397,974.20, 2,092,295.70 and 978,070.20 is: 1,463,841.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,974.20 : 2,092,295.70 = 978,070.20 : x
  2. Step 2: Convert to fraction form
    1,397,974.20/2,092,295.70 = 978,070.20/x
  3. Step 3: Cross multiply
    1,397,974.20x = 2,092,295.70 × 978,070.20
  4. Step 4: Simplify right side
    1,397,974.20x = 2,046,412,073,758.14
  5. Step 5: Solve for x
    x = 2,046,412,073,758.14/1,397,974.20
  6. Step 6: Final answer
    x = 1,463,841.09

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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.