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Finding the Fourth Proportional to 1,024.45, 1,413.80 and 582.39

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Solution

The fourth proportional to 1,024.45, 1,413.80 and 582.39 is: 803.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,024.45 : 1,413.80 = 582.39 : x
  2. Step 2: Convert to fraction form
    1,024.45/1,413.80 = 582.39/x
  3. Step 3: Cross multiply
    1,024.45x = 1,413.80 × 582.39
  4. Step 4: Simplify right side
    1,024.45x = 823,385.53
  5. Step 5: Solve for x
    x = 823,385.53/1,024.45
  6. Step 6: Final answer
    x = 803.74

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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.