Home / 1,088.44-1,632.66-318.94

Finding the Fourth Proportional to 1,088.44, 1,632.66 and 318.94

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Solution

The fourth proportional to 1,088.44, 1,632.66 and 318.94 is: 478.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,088.44 : 1,632.66 = 318.94 : x
  2. Step 2: Convert to fraction form
    1,088.44/1,632.66 = 318.94/x
  3. Step 3: Cross multiply
    1,088.44x = 1,632.66 × 318.94
  4. Step 4: Simplify right side
    1,088.44x = 520,715.30
  5. Step 5: Solve for x
    x = 520,715.30/1,088.44
  6. Step 6: Final answer
    x = 478.41

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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.