Home / 1,279,843.47-1,920,180.24-381,292.92

Finding the Fourth Proportional to 1,279,843.47, 1,920,180.24 and 381,292.92

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Solution

The fourth proportional to 1,279,843.47, 1,920,180.24 and 381,292.92 is: 572,063.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,843.47 : 1,920,180.24 = 381,292.92 : x
  2. Step 2: Convert to fraction form
    1,279,843.47/1,920,180.24 = 381,292.92/x
  3. Step 3: Cross multiply
    1,279,843.47x = 1,920,180.24 × 381,292.92
  4. Step 4: Simplify right side
    1,279,843.47x = 732,151,130,635.90
  5. Step 5: Solve for x
    x = 732,151,130,635.90/1,279,843.47
  6. Step 6: Final answer
    x = 572,063.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.