Home / 1,368,520.64-1,888,481.92-756,637.76

Finding the Fourth Proportional to 1,368,520.64, 1,888,481.92 and 756,637.76

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Solution

The fourth proportional to 1,368,520.64, 1,888,481.92 and 756,637.76 is: 1,044,117.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,520.64 : 1,888,481.92 = 756,637.76 : x
  2. Step 2: Convert to fraction form
    1,368,520.64/1,888,481.92 = 756,637.76/x
  3. Step 3: Cross multiply
    1,368,520.64x = 1,888,481.92 × 756,637.76
  4. Step 4: Simplify right side
    1,368,520.64x = 1,428,896,729,749.30
  5. Step 5: Solve for x
    x = 1,428,896,729,749.30/1,368,520.64
  6. Step 6: Final answer
    x = 1,044,117.78

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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.