Home / 1,178.27-1,766.32-528.65

Finding the Fourth Proportional to 1,178.27, 1,766.32 and 528.65

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Solution

The fourth proportional to 1,178.27, 1,766.32 and 528.65 is: 792.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178.27 : 1,766.32 = 528.65 : x
  2. Step 2: Convert to fraction form
    1,178.27/1,766.32 = 528.65/x
  3. Step 3: Cross multiply
    1,178.27x = 1,766.32 × 528.65
  4. Step 4: Simplify right side
    1,178.27x = 933,765.07
  5. Step 5: Solve for x
    x = 933,765.07/1,178.27
  6. Step 6: Final answer
    x = 792.49

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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.