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Finding the Fourth Proportional to 565.45, 847.05 and 497.80

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Solution

The fourth proportional to 565.45, 847.05 and 497.80 is: 745.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    565.45 : 847.05 = 497.80 : x
  2. Step 2: Convert to fraction form
    565.45/847.05 = 497.80/x
  3. Step 3: Cross multiply
    565.45x = 847.05 × 497.80
  4. Step 4: Simplify right side
    565.45x = 421,661.49
  5. Step 5: Solve for x
    x = 421,661.49/565.45
  6. Step 6: Final answer
    x = 745.71

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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.