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Finding the Fourth Proportional to 649.02, 973.50 and 324.12

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Solution

The fourth proportional to 649.02, 973.50 and 324.12 is: 486.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    649.02 : 973.50 = 324.12 : x
  2. Step 2: Convert to fraction form
    649.02/973.50 = 324.12/x
  3. Step 3: Cross multiply
    649.02x = 973.50 × 324.12
  4. Step 4: Simplify right side
    649.02x = 315,530.82
  5. Step 5: Solve for x
    x = 315,530.82/649.02
  6. Step 6: Final answer
    x = 486.17

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Find fourth proportional to 324.51, 486.75 and 162.06
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Double scale
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Similar ratio
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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.