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Finding the Fourth Proportional to 1,023.99, 1,413.15 and 581.91

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Solution

The fourth proportional to 1,023.99, 1,413.15 and 581.91 is: 803.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,023.99 : 1,413.15 = 581.91 : x
  2. Step 2: Convert to fraction form
    1,023.99/1,413.15 = 581.91/x
  3. Step 3: Cross multiply
    1,023.99x = 1,413.15 × 581.91
  4. Step 4: Simplify right side
    1,023.99x = 822,323.21
  5. Step 5: Solve for x
    x = 822,323.21/1,023.99
  6. Step 6: Final answer
    x = 803.06

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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.