Home / 1,375,741.38-1,898,523.10-772,129.38

Finding the Fourth Proportional to 1,375,741.38, 1,898,523.10 and 772,129.38

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Solution

The fourth proportional to 1,375,741.38, 1,898,523.10 and 772,129.38 is: 1,065,538.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,741.38 : 1,898,523.10 = 772,129.38 : x
  2. Step 2: Convert to fraction form
    1,375,741.38/1,898,523.10 = 772,129.38/x
  3. Step 3: Cross multiply
    1,375,741.38x = 1,898,523.10 × 772,129.38
  4. Step 4: Simplify right side
    1,375,741.38x = 1,465,905,464,118.68
  5. Step 5: Solve for x
    x = 1,465,905,464,118.68/1,375,741.38
  6. Step 6: Final answer
    x = 1,065,538.54

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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.