Home / 1,145.32-1,717.06-495.60

Finding the Fourth Proportional to 1,145.32, 1,717.06 and 495.60

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Solution

The fourth proportional to 1,145.32, 1,717.06 and 495.60 is: 743.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145.32 : 1,717.06 = 495.60 : x
  2. Step 2: Convert to fraction form
    1,145.32/1,717.06 = 495.60/x
  3. Step 3: Cross multiply
    1,145.32x = 1,717.06 × 495.60
  4. Step 4: Simplify right side
    1,145.32x = 850,974.94
  5. Step 5: Solve for x
    x = 850,974.94/1,145.32
  6. Step 6: Final answer
    x = 743.00

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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.