Home / 820,801.14-1,231,324.62-288,228.30

Finding the Fourth Proportional to 820,801.14, 1,231,324.62 and 288,228.30

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Solution

The fourth proportional to 820,801.14, 1,231,324.62 and 288,228.30 is: 432,385.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,801.14 : 1,231,324.62 = 288,228.30 : x
  2. Step 2: Convert to fraction form
    820,801.14/1,231,324.62 = 288,228.30/x
  3. Step 3: Cross multiply
    820,801.14x = 1,231,324.62 × 288,228.30
  4. Step 4: Simplify right side
    820,801.14x = 354,902,601,970.75
  5. Step 5: Solve for x
    x = 354,902,601,970.75/820,801.14
  6. Step 6: Final answer
    x = 432,385.61

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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.