Home / 727.29-1,090.60-264.75

Finding the Fourth Proportional to 727.29, 1,090.60 and 264.75

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Solution

The fourth proportional to 727.29, 1,090.60 and 264.75 is: 397.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    727.29 : 1,090.60 = 264.75 : x
  2. Step 2: Convert to fraction form
    727.29/1,090.60 = 264.75/x
  3. Step 3: Cross multiply
    727.29x = 1,090.60 × 264.75
  4. Step 4: Simplify right side
    727.29x = 288,731.60
  5. Step 5: Solve for x
    x = 288,731.60/727.29
  6. Step 6: Final answer
    x = 397.00

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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.