Home / 722,451.33-996,969.60-400,160.43

Finding the Fourth Proportional to 722,451.33, 996,969.60 and 400,160.43

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Solution

The fourth proportional to 722,451.33, 996,969.60 and 400,160.43 is: 552,214.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,451.33 : 996,969.60 = 400,160.43 : x
  2. Step 2: Convert to fraction form
    722,451.33/996,969.60 = 400,160.43/x
  3. Step 3: Cross multiply
    722,451.33x = 996,969.60 × 400,160.43
  4. Step 4: Simplify right side
    722,451.33x = 398,947,783,832.93
  5. Step 5: Solve for x
    x = 398,947,783,832.93/722,451.33
  6. Step 6: Final answer
    x = 552,214.06

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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.