Home / 1,131,015.57-1,560,761.91-621,714.30

Finding the Fourth Proportional to 1,131,015.57, 1,560,761.91 and 621,714.30

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Solution

The fourth proportional to 1,131,015.57, 1,560,761.91 and 621,714.30 is: 857,943.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,015.57 : 1,560,761.91 = 621,714.30 : x
  2. Step 2: Convert to fraction form
    1,131,015.57/1,560,761.91 = 621,714.30/x
  3. Step 3: Cross multiply
    1,131,015.57x = 1,560,761.91 × 621,714.30
  4. Step 4: Simplify right side
    1,131,015.57x = 970,347,998,342.31
  5. Step 5: Solve for x
    x = 970,347,998,342.31/1,131,015.57
  6. Step 6: Final answer
    x = 857,943.98

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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.