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Finding the Fourth Proportional to 977.21, 1,466.15 and 566.69

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Solution

The fourth proportional to 977.21, 1,466.15 and 566.69 is: 850.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    977.21 : 1,466.15 = 566.69 : x
  2. Step 2: Convert to fraction form
    977.21/1,466.15 = 566.69/x
  3. Step 3: Cross multiply
    977.21x = 1,466.15 × 566.69
  4. Step 4: Simplify right side
    977.21x = 830,852.54
  5. Step 5: Solve for x
    x = 830,852.54/977.21
  6. Step 6: Final answer
    x = 850.23

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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.