Home / 1,279,814-1,920,036.76-381,252.25

Finding the Fourth Proportional to 1,279,814, 1,920,036.76 and 381,252.25

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Solution

The fourth proportional to 1,279,814, 1,920,036.76 and 381,252.25 is: 571,972.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,814 : 1,920,036.76 = 381,252.25 : x
  2. Step 2: Convert to fraction form
    1,279,814/1,920,036.76 = 381,252.25/x
  3. Step 3: Cross multiply
    1,279,814x = 1,920,036.76 × 381,252.25
  4. Step 4: Simplify right side
    1,279,814x = 732,018,323,326.27
  5. Step 5: Solve for x
    x = 732,018,323,326.27/1,279,814
  6. Step 6: Final answer
    x = 571,972.43

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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.