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Finding the Fourth Proportional to 630.17, 944.47 and 491.77

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Solution

The fourth proportional to 630.17, 944.47 and 491.77 is: 737.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.17 : 944.47 = 491.77 : x
  2. Step 2: Convert to fraction form
    630.17/944.47 = 491.77/x
  3. Step 3: Cross multiply
    630.17x = 944.47 × 491.77
  4. Step 4: Simplify right side
    630.17x = 464,464.50
  5. Step 5: Solve for x
    x = 464,464.50/630.17
  6. Step 6: Final answer
    x = 737.05

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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.