Home / 1,589,378.40-2,193,311.16-864,219.78

Finding the Fourth Proportional to 1,589,378.40, 2,193,311.16 and 864,219.78

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Solution

The fourth proportional to 1,589,378.40, 2,193,311.16 and 864,219.78 is: 1,192,606.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,589,378.40 : 2,193,311.16 = 864,219.78 : x
  2. Step 2: Convert to fraction form
    1,589,378.40/2,193,311.16 = 864,219.78/x
  3. Step 3: Cross multiply
    1,589,378.40x = 2,193,311.16 × 864,219.78
  4. Step 4: Simplify right side
    1,589,378.40x = 1,895,502,888,166.75
  5. Step 5: Solve for x
    x = 1,895,502,888,166.75/1,589,378.40
  6. Step 6: Final answer
    x = 1,192,606.42

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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.