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Finding the Fourth Proportional to 497.66, 745.35 and 410.78

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Solution

The fourth proportional to 497.66, 745.35 and 410.78 is: 615.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    497.66 : 745.35 = 410.78 : x
  2. Step 2: Convert to fraction form
    497.66/745.35 = 410.78/x
  3. Step 3: Cross multiply
    497.66x = 745.35 × 410.78
  4. Step 4: Simplify right side
    497.66x = 306,171.15
  5. Step 5: Solve for x
    x = 306,171.15/497.66
  6. Step 6: Final answer
    x = 615.23

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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.