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Finding the Fourth Proportional to 529.74, 794.63 and 324.18

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Solution

The fourth proportional to 529.74, 794.63 and 324.18 is: 486.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.74 : 794.63 = 324.18 : x
  2. Step 2: Convert to fraction form
    529.74/794.63 = 324.18/x
  3. Step 3: Cross multiply
    529.74x = 794.63 × 324.18
  4. Step 4: Simplify right side
    529.74x = 257,603.96
  5. Step 5: Solve for x
    x = 257,603.96/529.74
  6. Step 6: Final answer
    x = 486.28

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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.