Home / 815,931.38-1,223,896.84-254,965.88

Finding the Fourth Proportional to 815,931.38, 1,223,896.84 and 254,965.88

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Solution

The fourth proportional to 815,931.38, 1,223,896.84 and 254,965.88 is: 382,448.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,931.38 : 1,223,896.84 = 254,965.88 : x
  2. Step 2: Convert to fraction form
    815,931.38/1,223,896.84 = 254,965.88/x
  3. Step 3: Cross multiply
    815,931.38x = 1,223,896.84 × 254,965.88
  4. Step 4: Simplify right side
    815,931.38x = 312,051,934,839.82
  5. Step 5: Solve for x
    x = 312,051,934,839.82/815,931.38
  6. Step 6: Final answer
    x = 382,448.75

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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.