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Finding the Fourth Proportional to 606.89, 912.16 and 539.46

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Solution

The fourth proportional to 606.89, 912.16 and 539.46 is: 810.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.89 : 912.16 = 539.46 : x
  2. Step 2: Convert to fraction form
    606.89/912.16 = 539.46/x
  3. Step 3: Cross multiply
    606.89x = 912.16 × 539.46
  4. Step 4: Simplify right side
    606.89x = 492,074.51
  5. Step 5: Solve for x
    x = 492,074.51/606.89
  6. Step 6: Final answer
    x = 810.81

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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.