Home / 1,508,391.89-2,081,621.84-820,110.05

Finding the Fourth Proportional to 1,508,391.89, 2,081,621.84 and 820,110.05

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Solution

The fourth proportional to 1,508,391.89, 2,081,621.84 and 820,110.05 is: 1,131,774.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,508,391.89 : 2,081,621.84 = 820,110.05 : x
  2. Step 2: Convert to fraction form
    1,508,391.89/2,081,621.84 = 820,110.05/x
  3. Step 3: Cross multiply
    1,508,391.89x = 2,081,621.84 × 820,110.05
  4. Step 4: Simplify right side
    1,508,391.89x = 1,707,158,976,774.83
  5. Step 5: Solve for x
    x = 1,707,158,976,774.83/1,508,391.89
  6. Step 6: Final answer
    x = 1,131,774.17

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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.