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Finding the Fourth Proportional to 1,228.91, 1,844.19 and 498.51

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Solution

The fourth proportional to 1,228.91, 1,844.19 and 498.51 is: 748.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228.91 : 1,844.19 = 498.51 : x
  2. Step 2: Convert to fraction form
    1,228.91/1,844.19 = 498.51/x
  3. Step 3: Cross multiply
    1,228.91x = 1,844.19 × 498.51
  4. Step 4: Simplify right side
    1,228.91x = 919,347.16
  5. Step 5: Solve for x
    x = 919,347.16/1,228.91
  6. Step 6: Final answer
    x = 748.10

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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.