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Finding the Fourth Proportional to 896.00, 1,236.53 and 497.68

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Solution

The fourth proportional to 896.00, 1,236.53 and 497.68 is: 686.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    896.00 : 1,236.53 = 497.68 : x
  2. Step 2: Convert to fraction form
    896.00/1,236.53 = 497.68/x
  3. Step 3: Cross multiply
    896.00x = 1,236.53 × 497.68
  4. Step 4: Simplify right side
    896.00x = 615,394.40
  5. Step 5: Solve for x
    x = 615,394.40/896.00
  6. Step 6: Final answer
    x = 686.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.