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Finding the Fourth Proportional to 1,062.19, 1,593.71 and 413.11

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Solution

The fourth proportional to 1,062.19, 1,593.71 and 413.11 is: 619.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,062.19 : 1,593.71 = 413.11 : x
  2. Step 2: Convert to fraction form
    1,062.19/1,593.71 = 413.11/x
  3. Step 3: Cross multiply
    1,062.19x = 1,593.71 × 413.11
  4. Step 4: Simplify right side
    1,062.19x = 658,377.54
  5. Step 5: Solve for x
    x = 658,377.54/1,062.19
  6. Step 6: Final answer
    x = 619.83

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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.