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Finding the Fourth Proportional to 529.56, 794.65 and 413.68

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Solution

The fourth proportional to 529.56, 794.65 and 413.68 is: 620.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.56 : 794.65 = 413.68 : x
  2. Step 2: Convert to fraction form
    529.56/794.65 = 413.68/x
  3. Step 3: Cross multiply
    529.56x = 794.65 × 413.68
  4. Step 4: Simplify right side
    529.56x = 328,730.00
  5. Step 5: Solve for x
    x = 328,730.00/529.56
  6. Step 6: Final answer
    x = 620.76

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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.