Home / 1,245,650.96-1,718,998.31-672,691.10

Finding the Fourth Proportional to 1,245,650.96, 1,718,998.31 and 672,691.10

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Solution

The fourth proportional to 1,245,650.96, 1,718,998.31 and 672,691.10 is: 928,313.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,650.96 : 1,718,998.31 = 672,691.10 : x
  2. Step 2: Convert to fraction form
    1,245,650.96/1,718,998.31 = 672,691.10/x
  3. Step 3: Cross multiply
    1,245,650.96x = 1,718,998.31 × 672,691.10
  4. Step 4: Simplify right side
    1,245,650.96x = 1,156,354,857,138.78
  5. Step 5: Solve for x
    x = 1,156,354,857,138.78/1,245,650.96
  6. Step 6: Final answer
    x = 928,313.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.