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Finding the Fourth Proportional to 792.66, 1,188.64 and 463.92

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Solution

The fourth proportional to 792.66, 1,188.64 and 463.92 is: 695.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.66 : 1,188.64 = 463.92 : x
  2. Step 2: Convert to fraction form
    792.66/1,188.64 = 463.92/x
  3. Step 3: Cross multiply
    792.66x = 1,188.64 × 463.92
  4. Step 4: Simplify right side
    792.66x = 551,433.87
  5. Step 5: Solve for x
    x = 551,433.87/792.66
  6. Step 6: Final answer
    x = 695.68

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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.