Home / 727.03-1,089.33-316.36

Finding the Fourth Proportional to 727.03, 1,089.33 and 316.36

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Solution

The fourth proportional to 727.03, 1,089.33 and 316.36 is: 474.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    727.03 : 1,089.33 = 316.36 : x
  2. Step 2: Convert to fraction form
    727.03/1,089.33 = 316.36/x
  3. Step 3: Cross multiply
    727.03x = 1,089.33 × 316.36
  4. Step 4: Simplify right side
    727.03x = 344,620.44
  5. Step 5: Solve for x
    x = 344,620.44/727.03
  6. Step 6: Final answer
    x = 474.01

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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.