Home / 791,399.72-1,092,151.80-485,644.97

Finding the Fourth Proportional to 791,399.72, 1,092,151.80 and 485,644.97

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Solution

The fourth proportional to 791,399.72, 1,092,151.80 and 485,644.97 is: 670,202.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,399.72 : 1,092,151.80 = 485,644.97 : x
  2. Step 2: Convert to fraction form
    791,399.72/1,092,151.80 = 485,644.97/x
  3. Step 3: Cross multiply
    791,399.72x = 1,092,151.80 × 485,644.97
  4. Step 4: Simplify right side
    791,399.72x = 530,398,028,146.45
  5. Step 5: Solve for x
    x = 530,398,028,146.45/791,399.72
  6. Step 6: Final answer
    x = 670,202.45

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1.5x scale

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.