Home / 1,508,679.92-2,081,980.78-820,351.14

Finding the Fourth Proportional to 1,508,679.92, 2,081,980.78 and 820,351.14

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Solution

The fourth proportional to 1,508,679.92, 2,081,980.78 and 820,351.14 is: 1,132,085.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,508,679.92 : 2,081,980.78 = 820,351.14 : x
  2. Step 2: Convert to fraction form
    1,508,679.92/2,081,980.78 = 820,351.14/x
  3. Step 3: Cross multiply
    1,508,679.92x = 2,081,980.78 × 820,351.14
  4. Step 4: Simplify right side
    1,508,679.92x = 1,707,955,306,331.09
  5. Step 5: Solve for x
    x = 1,707,955,306,331.09/1,508,679.92
  6. Step 6: Final answer
    x = 1,132,085.93

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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.