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Finding the Fourth Proportional to 577.46, 866.19 and 322.58

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Solution

The fourth proportional to 577.46, 866.19 and 322.58 is: 483.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.46 : 866.19 = 322.58 : x
  2. Step 2: Convert to fraction form
    577.46/866.19 = 322.58/x
  3. Step 3: Cross multiply
    577.46x = 866.19 × 322.58
  4. Step 4: Simplify right side
    577.46x = 279,415.57
  5. Step 5: Solve for x
    x = 279,415.57/577.46
  6. Step 6: Final answer
    x = 483.87

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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.