Home / 820,495.24-1,230,732.96-213,229.75

Finding the Fourth Proportional to 820,495.24, 1,230,732.96 and 213,229.75

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Solution

The fourth proportional to 820,495.24, 1,230,732.96 and 213,229.75 is: 319,842.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,495.24 : 1,230,732.96 = 213,229.75 : x
  2. Step 2: Convert to fraction form
    820,495.24/1,230,732.96 = 213,229.75/x
  3. Step 3: Cross multiply
    820,495.24x = 1,230,732.96 × 213,229.75
  4. Step 4: Simplify right side
    820,495.24x = 262,428,881,377.56
  5. Step 5: Solve for x
    x = 262,428,881,377.56/820,495.24
  6. Step 6: Final answer
    x = 319,842.05

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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.