Home / 1,375,739.38-1,898,520.34-772,127.38

Finding the Fourth Proportional to 1,375,739.38, 1,898,520.34 and 772,127.38

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Solution

The fourth proportional to 1,375,739.38, 1,898,520.34 and 772,127.38 is: 1,065,535.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,739.38 : 1,898,520.34 = 772,127.38 : x
  2. Step 2: Convert to fraction form
    1,375,739.38/1,898,520.34 = 772,127.38/x
  3. Step 3: Cross multiply
    1,375,739.38x = 1,898,520.34 × 772,127.38
  4. Step 4: Simplify right side
    1,375,739.38x = 1,465,899,526,508.31
  5. Step 5: Solve for x
    x = 1,465,899,526,508.31/1,375,739.38
  6. Step 6: Final answer
    x = 1,065,535.78

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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.