Home / 1,123,508.72-1,685,687.32-674,542.56

Finding the Fourth Proportional to 1,123,508.72, 1,685,687.32 and 674,542.56

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Solution

The fourth proportional to 1,123,508.72, 1,685,687.32 and 674,542.56 is: 1,012,068.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,508.72 : 1,685,687.32 = 674,542.56 : x
  2. Step 2: Convert to fraction form
    1,123,508.72/1,685,687.32 = 674,542.56/x
  3. Step 3: Cross multiply
    1,123,508.72x = 1,685,687.32 × 674,542.56
  4. Step 4: Simplify right side
    1,123,508.72x = 1,137,067,839,770.09
  5. Step 5: Solve for x
    x = 1,137,067,839,770.09/1,123,508.72
  6. Step 6: Final answer
    x = 1,012,068.55

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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.