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Finding the Fourth Proportional to 888.44, 1,335.02 and 477.88

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Solution

The fourth proportional to 888.44, 1,335.02 and 477.88 is: 718.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.44 : 1,335.02 = 477.88 : x
  2. Step 2: Convert to fraction form
    888.44/1,335.02 = 477.88/x
  3. Step 3: Cross multiply
    888.44x = 1,335.02 × 477.88
  4. Step 4: Simplify right side
    888.44x = 637,979.36
  5. Step 5: Solve for x
    x = 637,979.36/888.44
  6. Step 6: Final answer
    x = 718.09

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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.