Home / 1,589,279.47-2,193,145.20-864,127.78

Finding the Fourth Proportional to 1,589,279.47, 2,193,145.20 and 864,127.78

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Solution

The fourth proportional to 1,589,279.47, 2,193,145.20 and 864,127.78 is: 1,192,463.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,589,279.47 : 2,193,145.20 = 864,127.78 : x
  2. Step 2: Convert to fraction form
    1,589,279.47/2,193,145.20 = 864,127.78/x
  3. Step 3: Cross multiply
    1,589,279.47x = 2,193,145.20 × 864,127.78
  4. Step 4: Simplify right side
    1,589,279.47x = 1,895,157,687,410.79
  5. Step 5: Solve for x
    x = 1,895,157,687,410.79/1,589,279.47
  6. Step 6: Final answer
    x = 1,192,463.46

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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.