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Finding the Fourth Proportional to 1,019.11, 1,526.26 and 497.48

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Solution

The fourth proportional to 1,019.11, 1,526.26 and 497.48 is: 745.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019.11 : 1,526.26 = 497.48 : x
  2. Step 2: Convert to fraction form
    1,019.11/1,526.26 = 497.48/x
  3. Step 3: Cross multiply
    1,019.11x = 1,526.26 × 497.48
  4. Step 4: Simplify right side
    1,019.11x = 759,275.88
  5. Step 5: Solve for x
    x = 759,275.88/1,019.11
  6. Step 6: Final answer
    x = 745.04

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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.