Home / 1,131,018.32-1,560,765.70-621,717.06

Finding the Fourth Proportional to 1,131,018.32, 1,560,765.70 and 621,717.06

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Solution

The fourth proportional to 1,131,018.32, 1,560,765.70 and 621,717.06 is: 857,947.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,018.32 : 1,560,765.70 = 621,717.06 : x
  2. Step 2: Convert to fraction form
    1,131,018.32/1,560,765.70 = 621,717.06/x
  3. Step 3: Cross multiply
    1,131,018.32x = 1,560,765.70 × 621,717.06
  4. Step 4: Simplify right side
    1,131,018.32x = 970,354,662,352.84
  5. Step 5: Solve for x
    x = 970,354,662,352.84/1,131,018.32
  6. Step 6: Final answer
    x = 857,947.78

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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.