Home / 815,943.54-1,222,560.45-499,735.74

Finding the Fourth Proportional to 815,943.54, 1,222,560.45 and 499,735.74

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Solution

The fourth proportional to 815,943.54, 1,222,560.45 and 499,735.74 is: 748,773.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,943.54 : 1,222,560.45 = 499,735.74 : x
  2. Step 2: Convert to fraction form
    815,943.54/1,222,560.45 = 499,735.74/x
  3. Step 3: Cross multiply
    815,943.54x = 1,222,560.45 × 499,735.74
  4. Step 4: Simplify right side
    815,943.54x = 610,957,151,175.48
  5. Step 5: Solve for x
    x = 610,957,151,175.48/815,943.54
  6. Step 6: Final answer
    x = 748,773.81

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1.5x scale

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.