Home / 791,398.72-1,092,150.42-485,643.97

Finding the Fourth Proportional to 791,398.72, 1,092,150.42 and 485,643.97

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Solution

The fourth proportional to 791,398.72, 1,092,150.42 and 485,643.97 is: 670,201.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,398.72 : 1,092,150.42 = 485,643.97 : x
  2. Step 2: Convert to fraction form
    791,398.72/1,092,150.42 = 485,643.97/x
  3. Step 3: Cross multiply
    791,398.72x = 1,092,150.42 × 485,643.97
  4. Step 4: Simplify right side
    791,398.72x = 530,396,263,377.75
  5. Step 5: Solve for x
    x = 530,396,263,377.75/791,398.72
  6. Step 6: Final answer
    x = 670,201.06

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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.