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Finding the Fourth Proportional to 497.78, 745.38 and 483.18

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Solution

The fourth proportional to 497.78, 745.38 and 483.18 is: 723.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    497.78 : 745.38 = 483.18 : x
  2. Step 2: Convert to fraction form
    497.78/745.38 = 483.18/x
  3. Step 3: Cross multiply
    497.78x = 745.38 × 483.18
  4. Step 4: Simplify right side
    497.78x = 360,152.71
  5. Step 5: Solve for x
    x = 360,152.71/497.78
  6. Step 6: Final answer
    x = 723.52

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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.