Home / 862,279.29-1,189,982.16-480,305.97

Finding the Fourth Proportional to 862,279.29, 1,189,982.16 and 480,305.97

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Solution

The fourth proportional to 862,279.29, 1,189,982.16 and 480,305.97 is: 662,842.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,279.29 : 1,189,982.16 = 480,305.97 : x
  2. Step 2: Convert to fraction form
    862,279.29/1,189,982.16 = 480,305.97/x
  3. Step 3: Cross multiply
    862,279.29x = 1,189,982.16 × 480,305.97
  4. Step 4: Simplify right side
    862,279.29x = 571,555,535,641.50
  5. Step 5: Solve for x
    x = 571,555,535,641.50/862,279.29
  6. Step 6: Final answer
    x = 662,842.70

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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.