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Finding the Fourth Proportional to 888.96, 1,333.84 and 477.62

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Solution

The fourth proportional to 888.96, 1,333.84 and 477.62 is: 716.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.96 : 1,333.84 = 477.62 : x
  2. Step 2: Convert to fraction form
    888.96/1,333.84 = 477.62/x
  3. Step 3: Cross multiply
    888.96x = 1,333.84 × 477.62
  4. Step 4: Simplify right side
    888.96x = 637,068.66
  5. Step 5: Solve for x
    x = 637,068.66/888.96
  6. Step 6: Final answer
    x = 716.64

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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.