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Finding the Fourth Proportional to 606.11, 904.81 and 581.81

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Solution

The fourth proportional to 606.11, 904.81 and 581.81 is: 868.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.11 : 904.81 = 581.81 : x
  2. Step 2: Convert to fraction form
    606.11/904.81 = 581.81/x
  3. Step 3: Cross multiply
    606.11x = 904.81 × 581.81
  4. Step 4: Simplify right side
    606.11x = 526,424.60
  5. Step 5: Solve for x
    x = 526,424.60/606.11
  6. Step 6: Final answer
    x = 868.53

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.