Home / 1,375,575.91-1,898,343.61-763,738.31

Finding the Fourth Proportional to 1,375,575.91, 1,898,343.61 and 763,738.31

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Solution

The fourth proportional to 1,375,575.91, 1,898,343.61 and 763,738.31 is: 1,053,986.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,575.91 : 1,898,343.61 = 763,738.31 : x
  2. Step 2: Convert to fraction form
    1,375,575.91/1,898,343.61 = 763,738.31/x
  3. Step 3: Cross multiply
    1,375,575.91x = 1,898,343.61 × 763,738.31
  4. Step 4: Simplify right side
    1,375,575.91x = 1,449,837,743,337.21
  5. Step 5: Solve for x
    x = 1,449,837,743,337.21/1,375,575.91
  6. Step 6: Final answer
    x = 1,053,986.00

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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.