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Finding the Fourth Proportional to 653.36, 980.68 and 650.32

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Solution

The fourth proportional to 653.36, 980.68 and 650.32 is: 976.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    653.36 : 980.68 = 650.32 : x
  2. Step 2: Convert to fraction form
    653.36/980.68 = 650.32/x
  3. Step 3: Cross multiply
    653.36x = 980.68 × 650.32
  4. Step 4: Simplify right side
    653.36x = 637,755.82
  5. Step 5: Solve for x
    x = 637,755.82/653.36
  6. Step 6: Final answer
    x = 976.12

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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.