Home / 1,432,249.79-1,976,528.79-820,456.04

Finding the Fourth Proportional to 1,432,249.79, 1,976,528.79 and 820,456.04

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Solution

The fourth proportional to 1,432,249.79, 1,976,528.79 and 820,456.04 is: 1,132,243.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,249.79 : 1,976,528.79 = 820,456.04 : x
  2. Step 2: Convert to fraction form
    1,432,249.79/1,976,528.79 = 820,456.04/x
  3. Step 3: Cross multiply
    1,432,249.79x = 1,976,528.79 × 820,456.04
  4. Step 4: Simplify right side
    1,432,249.79x = 1,621,654,988,930.71
  5. Step 5: Solve for x
    x = 1,621,654,988,930.71/1,432,249.79
  6. Step 6: Final answer
    x = 1,132,243.14

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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.