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Finding the Fourth Proportional to 652.62, 978.96 and 305.88

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Solution

The fourth proportional to 652.62, 978.96 and 305.88 is: 458.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    652.62 : 978.96 = 305.88 : x
  2. Step 2: Convert to fraction form
    652.62/978.96 = 305.88/x
  3. Step 3: Cross multiply
    652.62x = 978.96 × 305.88
  4. Step 4: Simplify right side
    652.62x = 299,444.28
  5. Step 5: Solve for x
    x = 299,444.28/652.62
  6. Step 6: Final answer
    x = 458.83

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.