Home / 1,397,982.20-2,092,307.70-978,078.20

Finding the Fourth Proportional to 1,397,982.20, 2,092,307.70 and 978,078.20

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Solution

The fourth proportional to 1,397,982.20, 2,092,307.70 and 978,078.20 is: 1,463,853.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,982.20 : 2,092,307.70 = 978,078.20 : x
  2. Step 2: Convert to fraction form
    1,397,982.20/2,092,307.70 = 978,078.20/x
  3. Step 3: Cross multiply
    1,397,982.20x = 2,092,307.70 × 978,078.20
  4. Step 4: Simplify right side
    1,397,982.20x = 2,046,440,549,062.14
  5. Step 5: Solve for x
    x = 2,046,440,549,062.14/1,397,982.20
  6. Step 6: Final answer
    x = 1,463,853.08

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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.