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Finding the Fourth Proportional to 413.82, 619.77 and 362.46

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Solution

The fourth proportional to 413.82, 619.77 and 362.46 is: 542.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    413.82 : 619.77 = 362.46 : x
  2. Step 2: Convert to fraction form
    413.82/619.77 = 362.46/x
  3. Step 3: Cross multiply
    413.82x = 619.77 × 362.46
  4. Step 4: Simplify right side
    413.82x = 224,641.83
  5. Step 5: Solve for x
    x = 224,641.83/413.82
  6. Step 6: Final answer
    x = 542.85

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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.