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Finding the Fourth Proportional to 704.18, 1,055.46 and 498.44

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Solution

The fourth proportional to 704.18, 1,055.46 and 498.44 is: 747.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    704.18 : 1,055.46 = 498.44 : x
  2. Step 2: Convert to fraction form
    704.18/1,055.46 = 498.44/x
  3. Step 3: Cross multiply
    704.18x = 1,055.46 × 498.44
  4. Step 4: Simplify right side
    704.18x = 526,083.48
  5. Step 5: Solve for x
    x = 526,083.48/704.18
  6. Step 6: Final answer
    x = 747.09

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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.