Home / 1,360.46-2,039.79-494.78

Finding the Fourth Proportional to 1,360.46, 2,039.79 and 494.78

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Solution

The fourth proportional to 1,360.46, 2,039.79 and 494.78 is: 741.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,360.46 : 2,039.79 = 494.78 : x
  2. Step 2: Convert to fraction form
    1,360.46/2,039.79 = 494.78/x
  3. Step 3: Cross multiply
    1,360.46x = 2,039.79 × 494.78
  4. Step 4: Simplify right side
    1,360.46x = 1,009,247.30
  5. Step 5: Solve for x
    x = 1,009,247.30/1,360.46
  6. Step 6: Final answer
    x = 741.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.