Home / 1,287,249.88-1,776,749.52-803,523.84

Finding the Fourth Proportional to 1,287,249.88, 1,776,749.52 and 803,523.84

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Solution

The fourth proportional to 1,287,249.88, 1,776,749.52 and 803,523.84 is: 1,109,078.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,249.88 : 1,776,749.52 = 803,523.84 : x
  2. Step 2: Convert to fraction form
    1,287,249.88/1,776,749.52 = 803,523.84/x
  3. Step 3: Cross multiply
    1,287,249.88x = 1,776,749.52 × 803,523.84
  4. Step 4: Simplify right side
    1,287,249.88x = 1,427,660,597,028.56
  5. Step 5: Solve for x
    x = 1,427,660,597,028.56/1,287,249.88
  6. Step 6: Final answer
    x = 1,109,078.06

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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.