Home / 1,279,878.65-1,919,468.05-481,098.77

Finding the Fourth Proportional to 1,279,878.65, 1,919,468.05 and 481,098.77

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Solution

The fourth proportional to 1,279,878.65, 1,919,468.05 and 481,098.77 is: 721,516.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,878.65 : 1,919,468.05 = 481,098.77 : x
  2. Step 2: Convert to fraction form
    1,279,878.65/1,919,468.05 = 481,098.77/x
  3. Step 3: Cross multiply
    1,279,878.65x = 1,919,468.05 × 481,098.77
  4. Step 4: Simplify right side
    1,279,878.65x = 923,453,717,909.30
  5. Step 5: Solve for x
    x = 923,453,717,909.30/1,279,878.65
  6. Step 6: Final answer
    x = 721,516.62

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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.