Home / 815,936.13-1,125,629.60-543,738.87

Finding the Fourth Proportional to 815,936.13, 1,125,629.60 and 543,738.87

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Solution

The fourth proportional to 815,936.13, 1,125,629.60 and 543,738.87 is: 750,118.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,936.13 : 1,125,629.60 = 543,738.87 : x
  2. Step 2: Convert to fraction form
    815,936.13/1,125,629.60 = 543,738.87/x
  3. Step 3: Cross multiply
    815,936.13x = 1,125,629.60 × 543,738.87
  4. Step 4: Simplify right side
    815,936.13x = 612,048,564,023.86
  5. Step 5: Solve for x
    x = 612,048,564,023.86/815,936.13
  6. Step 6: Final answer
    x = 750,118.23

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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.