Home / 820,818.63-1,231,351.38-288,245.97

Finding the Fourth Proportional to 820,818.63, 1,231,351.38 and 288,245.97

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Solution

The fourth proportional to 820,818.63, 1,231,351.38 and 288,245.97 is: 432,412.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,818.63 : 1,231,351.38 = 288,245.97 : x
  2. Step 2: Convert to fraction form
    820,818.63/1,231,351.38 = 288,245.97/x
  3. Step 3: Cross multiply
    820,818.63x = 1,231,351.38 × 288,245.97
  4. Step 4: Simplify right side
    820,818.63x = 354,932,072,938.94
  5. Step 5: Solve for x
    x = 354,932,072,938.94/820,818.63
  6. Step 6: Final answer
    x = 432,412.30

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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.