Home / 1,131,695.87-1,561,769.84-622,411.61

Finding the Fourth Proportional to 1,131,695.87, 1,561,769.84 and 622,411.61

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Solution

The fourth proportional to 1,131,695.87, 1,561,769.84 and 622,411.61 is: 858,944.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,695.87 : 1,561,769.84 = 622,411.61 : x
  2. Step 2: Convert to fraction form
    1,131,695.87/1,561,769.84 = 622,411.61/x
  3. Step 3: Cross multiply
    1,131,695.87x = 1,561,769.84 × 622,411.61
  4. Step 4: Simplify right side
    1,131,695.87x = 972,063,674,311.02
  5. Step 5: Solve for x
    x = 972,063,674,311.02/1,131,695.87
  6. Step 6: Final answer
    x = 858,944.27

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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.