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Finding the Fourth Proportional to 1,024.26, 1,413.50 and 558.51

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Solution

The fourth proportional to 1,024.26, 1,413.50 and 558.51 is: 770.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,024.26 : 1,413.50 = 558.51 : x
  2. Step 2: Convert to fraction form
    1,024.26/1,413.50 = 558.51/x
  3. Step 3: Cross multiply
    1,024.26x = 1,413.50 × 558.51
  4. Step 4: Simplify right side
    1,024.26x = 789,451.09
  5. Step 5: Solve for x
    x = 789,451.09/1,024.26
  6. Step 6: Final answer
    x = 770.75

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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.