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Finding the Fourth Proportional to 649.50, 973.43 and 324.96

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Solution

The fourth proportional to 649.50, 973.43 and 324.96 is: 487.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    649.50 : 973.43 = 324.96 : x
  2. Step 2: Convert to fraction form
    649.50/973.43 = 324.96/x
  3. Step 3: Cross multiply
    649.50x = 973.43 × 324.96
  4. Step 4: Simplify right side
    649.50x = 316,325.81
  5. Step 5: Solve for x
    x = 316,325.81/649.50
  6. Step 6: Final answer
    x = 487.03

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1.5x scale

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.