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Finding the Fourth Proportional to 888.50, 1,333.26 and 477.65

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Solution

The fourth proportional to 888.50, 1,333.26 and 477.65 is: 716.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.50 : 1,333.26 = 477.65 : x
  2. Step 2: Convert to fraction form
    888.50/1,333.26 = 477.65/x
  3. Step 3: Cross multiply
    888.50x = 1,333.26 × 477.65
  4. Step 4: Simplify right side
    888.50x = 636,831.64
  5. Step 5: Solve for x
    x = 636,831.64/888.50
  6. Step 6: Final answer
    x = 716.75

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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.