Home / 820,940.13-1,231,383.26-371,661.08

Finding the Fourth Proportional to 820,940.13, 1,231,383.26 and 371,661.08

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Solution

The fourth proportional to 820,940.13, 1,231,383.26 and 371,661.08 is: 557,479.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,940.13 : 1,231,383.26 = 371,661.08 : x
  2. Step 2: Convert to fraction form
    820,940.13/1,231,383.26 = 371,661.08/x
  3. Step 3: Cross multiply
    820,940.13x = 1,231,383.26 × 371,661.08
  4. Step 4: Simplify right side
    820,940.13x = 457,657,227,077.76
  5. Step 5: Solve for x
    x = 457,657,227,077.76/820,940.13
  6. Step 6: Final answer
    x = 557,479.42

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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.