Home / 1,378,974.87-1,902,207.75-827,549.55

Finding the Fourth Proportional to 1,378,974.87, 1,902,207.75 and 827,549.55

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Solution

The fourth proportional to 1,378,974.87, 1,902,207.75 and 827,549.55 is: 1,141,551.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,974.87 : 1,902,207.75 = 827,549.55 : x
  2. Step 2: Convert to fraction form
    1,378,974.87/1,902,207.75 = 827,549.55/x
  3. Step 3: Cross multiply
    1,378,974.87x = 1,902,207.75 × 827,549.55
  4. Step 4: Simplify right side
    1,378,974.87x = 1,574,171,167,519.01
  5. Step 5: Solve for x
    x = 1,574,171,167,519.01/1,378,974.87
  6. Step 6: Final answer
    x = 1,141,551.74

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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.