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Finding the Fourth Proportional to 647.52, 964.74 and 632.94

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Solution

The fourth proportional to 647.52, 964.74 and 632.94 is: 943.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    647.52 : 964.74 = 632.94 : x
  2. Step 2: Convert to fraction form
    647.52/964.74 = 632.94/x
  3. Step 3: Cross multiply
    647.52x = 964.74 × 632.94
  4. Step 4: Simplify right side
    647.52x = 610,622.54
  5. Step 5: Solve for x
    x = 610,622.54/647.52
  6. Step 6: Final answer
    x = 943.02

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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.