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Finding the Fourth Proportional to 497.77, 684.46 and 482.39

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Solution

The fourth proportional to 497.77, 684.46 and 482.39 is: 663.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    497.77 : 684.46 = 482.39 : x
  2. Step 2: Convert to fraction form
    497.77/684.46 = 482.39/x
  3. Step 3: Cross multiply
    497.77x = 684.46 × 482.39
  4. Step 4: Simplify right side
    497.77x = 330,179.97
  5. Step 5: Solve for x
    x = 330,179.97/497.77
  6. Step 6: Final answer
    x = 663.32

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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.