Home / 827,349.90-1,240,876.89-220,141.50

Finding the Fourth Proportional to 827,349.90, 1,240,876.89 and 220,141.50

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Solution

The fourth proportional to 827,349.90, 1,240,876.89 and 220,141.50 is: 330,172.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,349.90 : 1,240,876.89 = 220,141.50 : x
  2. Step 2: Convert to fraction form
    827,349.90/1,240,876.89 = 220,141.50/x
  3. Step 3: Cross multiply
    827,349.90x = 1,240,876.89 × 220,141.50
  4. Step 4: Simplify right side
    827,349.90x = 273,168,499,879.94
  5. Step 5: Solve for x
    x = 273,168,499,879.94/827,349.90
  6. Step 6: Final answer
    x = 330,172.88

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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.