Home / 1,131,020.82-1,560,769.16-621,719.55

Finding the Fourth Proportional to 1,131,020.82, 1,560,769.16 and 621,719.55

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Solution

The fourth proportional to 1,131,020.82, 1,560,769.16 and 621,719.55 is: 857,951.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,020.82 : 1,560,769.16 = 621,719.55 : x
  2. Step 2: Convert to fraction form
    1,131,020.82/1,560,769.16 = 621,719.55/x
  3. Step 3: Cross multiply
    1,131,020.82x = 1,560,769.16 × 621,719.55
  4. Step 4: Simplify right side
    1,131,020.82x = 970,360,696,700.48
  5. Step 5: Solve for x
    x = 970,360,696,700.48/1,131,020.82
  6. Step 6: Final answer
    x = 857,951.22

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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.