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Finding the Fourth Proportional to 1,363.89, 2,045.84 and 498.09

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Solution

The fourth proportional to 1,363.89, 2,045.84 and 498.09 is: 747.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,363.89 : 2,045.84 = 498.09 : x
  2. Step 2: Convert to fraction form
    1,363.89/2,045.84 = 498.09/x
  3. Step 3: Cross multiply
    1,363.89x = 2,045.84 × 498.09
  4. Step 4: Simplify right side
    1,363.89x = 1,019,009.96
  5. Step 5: Solve for x
    x = 1,019,009.96/1,363.89
  6. Step 6: Final answer
    x = 747.14

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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.