Home / 815,963.13-1,223,944.47-254,997.63

Finding the Fourth Proportional to 815,963.13, 1,223,944.47 and 254,997.63

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Solution

The fourth proportional to 815,963.13, 1,223,944.47 and 254,997.63 is: 382,496.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,963.13 : 1,223,944.47 = 254,997.63 : x
  2. Step 2: Convert to fraction form
    815,963.13/1,223,944.47 = 254,997.63/x
  3. Step 3: Cross multiply
    815,963.13x = 1,223,944.47 × 254,997.63
  4. Step 4: Simplify right side
    815,963.13x = 312,102,939,101.61
  5. Step 5: Solve for x
    x = 312,102,939,101.61/815,963.13
  6. Step 6: Final answer
    x = 382,496.37

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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.