Home / 1,279,812.75-1,920,034.88-381,251

Finding the Fourth Proportional to 1,279,812.75, 1,920,034.88 and 381,251

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Solution

The fourth proportional to 1,279,812.75, 1,920,034.88 and 381,251 is: 571,970.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,812.75 : 1,920,034.88 = 381,251 : x
  2. Step 2: Convert to fraction form
    1,279,812.75/1,920,034.88 = 381,251/x
  3. Step 3: Cross multiply
    1,279,812.75x = 1,920,034.88 × 381,251
  4. Step 4: Simplify right side
    1,279,812.75x = 732,015,218,034.88
  5. Step 5: Solve for x
    x = 732,015,218,034.88/1,279,812.75
  6. Step 6: Final answer
    x = 571,970.56

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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.