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Finding the Fourth Proportional to 684.24, 944.52 and 477.36

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Solution

The fourth proportional to 684.24, 944.52 and 477.36 is: 658.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    684.24 : 944.52 = 477.36 : x
  2. Step 2: Convert to fraction form
    684.24/944.52 = 477.36/x
  3. Step 3: Cross multiply
    684.24x = 944.52 × 477.36
  4. Step 4: Simplify right side
    684.24x = 450,876.07
  5. Step 5: Solve for x
    x = 450,876.07/684.24
  6. Step 6: Final answer
    x = 658.94

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.