Home / 827,072.20-1,240,781.10-266,163.40

Finding the Fourth Proportional to 827,072.20, 1,240,781.10 and 266,163.40

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Solution

The fourth proportional to 827,072.20, 1,240,781.10 and 266,163.40 is: 399,300.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,072.20 : 1,240,781.10 = 266,163.40 : x
  2. Step 2: Convert to fraction form
    827,072.20/1,240,781.10 = 266,163.40/x
  3. Step 3: Cross multiply
    827,072.20x = 1,240,781.10 × 266,163.40
  4. Step 4: Simplify right side
    827,072.20x = 330,250,516,231.74
  5. Step 5: Solve for x
    x = 330,250,516,231.74/827,072.20
  6. Step 6: Final answer
    x = 399,300.71

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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.