Home / 729,769.98-1,007,076.56-398,626.19

Finding the Fourth Proportional to 729,769.98, 1,007,076.56 and 398,626.19

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Solution

The fourth proportional to 729,769.98, 1,007,076.56 and 398,626.19 is: 550,100.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,769.98 : 1,007,076.56 = 398,626.19 : x
  2. Step 2: Convert to fraction form
    729,769.98/1,007,076.56 = 398,626.19/x
  3. Step 3: Cross multiply
    729,769.98x = 1,007,076.56 × 398,626.19
  4. Step 4: Simplify right side
    729,769.98x = 401,447,092,151.11
  5. Step 5: Solve for x
    x = 401,447,092,151.11/729,769.98
  6. Step 6: Final answer
    x = 550,100.86

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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.