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Finding the Fourth Proportional to 651.80, 976.71 and 632.03

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Solution

The fourth proportional to 651.80, 976.71 and 632.03 is: 947.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    651.80 : 976.71 = 632.03 : x
  2. Step 2: Convert to fraction form
    651.80/976.71 = 632.03/x
  3. Step 3: Cross multiply
    651.80x = 976.71 × 632.03
  4. Step 4: Simplify right side
    651.80x = 617,310.02
  5. Step 5: Solve for x
    x = 617,310.02/651.80
  6. Step 6: Final answer
    x = 947.09

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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.