Home / 1,177.40-1,766.71-446.99

Finding the Fourth Proportional to 1,177.40, 1,766.71 and 446.99

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Solution

The fourth proportional to 1,177.40, 1,766.71 and 446.99 is: 670.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177.40 : 1,766.71 = 446.99 : x
  2. Step 2: Convert to fraction form
    1,177.40/1,766.71 = 446.99/x
  3. Step 3: Cross multiply
    1,177.40x = 1,766.71 × 446.99
  4. Step 4: Simplify right side
    1,177.40x = 789,693.43
  5. Step 5: Solve for x
    x = 789,693.43/1,177.40
  6. Step 6: Final answer
    x = 670.71

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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.