Home / 1,605,131.85-2,215,034.01-879,954.78

Finding the Fourth Proportional to 1,605,131.85, 2,215,034.01 and 879,954.78

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Solution

The fourth proportional to 1,605,131.85, 2,215,034.01 and 879,954.78 is: 1,214,311.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605,131.85 : 2,215,034.01 = 879,954.78 : x
  2. Step 2: Convert to fraction form
    1,605,131.85/2,215,034.01 = 879,954.78/x
  3. Step 3: Cross multiply
    1,605,131.85x = 2,215,034.01 × 879,954.78
  4. Step 4: Simplify right side
    1,605,131.85x = 1,949,129,764,962.07
  5. Step 5: Solve for x
    x = 1,949,129,764,962.07/1,605,131.85
  6. Step 6: Final answer
    x = 1,214,311.31

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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.