Home / 2,278,721-3,418,088.94-858,395.72

Finding the Fourth Proportional to 2,278,721, 3,418,088.94 and 858,395.72

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Solution

The fourth proportional to 2,278,721, 3,418,088.94 and 858,395.72 is: 1,287,596.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278,721 : 3,418,088.94 = 858,395.72 : x
  2. Step 2: Convert to fraction form
    2,278,721/3,418,088.94 = 858,395.72/x
  3. Step 3: Cross multiply
    2,278,721x = 3,418,088.94 × 858,395.72
  4. Step 4: Simplify right side
    2,278,721x = 2,934,072,916,675.34
  5. Step 5: Solve for x
    x = 2,934,072,916,675.34/2,278,721
  6. Step 6: Final answer
    x = 1,287,596.38

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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.