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Finding the Fourth Proportional to 896.04, 1,236.40 and 502.99

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Solution

The fourth proportional to 896.04, 1,236.40 and 502.99 is: 694.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    896.04 : 1,236.40 = 502.99 : x
  2. Step 2: Convert to fraction form
    896.04/1,236.40 = 502.99/x
  3. Step 3: Cross multiply
    896.04x = 1,236.40 × 502.99
  4. Step 4: Simplify right side
    896.04x = 621,892.49
  5. Step 5: Solve for x
    x = 621,892.49/896.04
  6. Step 6: Final answer
    x = 694.05

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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.