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Finding the Fourth Proportional to 484.68, 730.28 and 432.28

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Solution

The fourth proportional to 484.68, 730.28 and 432.28 is: 651.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.68 : 730.28 = 432.28 : x
  2. Step 2: Convert to fraction form
    484.68/730.28 = 432.28/x
  3. Step 3: Cross multiply
    484.68x = 730.28 × 432.28
  4. Step 4: Simplify right side
    484.68x = 315,685.44
  5. Step 5: Solve for x
    x = 315,685.44/484.68
  6. Step 6: Final answer
    x = 651.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.