Home / 1,192,249.92-1,644,472.08-809,612.40

Finding the Fourth Proportional to 1,192,249.92, 1,644,472.08 and 809,612.40

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Solution

The fourth proportional to 1,192,249.92, 1,644,472.08 and 809,612.40 is: 1,116,699.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192,249.92 : 1,644,472.08 = 809,612.40 : x
  2. Step 2: Convert to fraction form
    1,192,249.92/1,644,472.08 = 809,612.40/x
  3. Step 3: Cross multiply
    1,192,249.92x = 1,644,472.08 × 809,612.40
  4. Step 4: Simplify right side
    1,192,249.92x = 1,331,384,987,421.79
  5. Step 5: Solve for x
    x = 1,331,384,987,421.79/1,192,249.92
  6. Step 6: Final answer
    x = 1,116,699.58

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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.