Home / 1,324,868.10-1,828,324.89-721,260.42

Finding the Fourth Proportional to 1,324,868.10, 1,828,324.89 and 721,260.42

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Solution

The fourth proportional to 1,324,868.10, 1,828,324.89 and 721,260.42 is: 995,343.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324,868.10 : 1,828,324.89 = 721,260.42 : x
  2. Step 2: Convert to fraction form
    1,324,868.10/1,828,324.89 = 721,260.42/x
  3. Step 3: Cross multiply
    1,324,868.10x = 1,828,324.89 × 721,260.42
  4. Step 4: Simplify right side
    1,324,868.10x = 1,318,698,378,057.85
  5. Step 5: Solve for x
    x = 1,318,698,378,057.85/1,324,868.10
  6. Step 6: Final answer
    x = 995,343.14

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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.