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Finding the Fourth Proportional to 532.86, 799.65 and 455.10

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Solution

The fourth proportional to 532.86, 799.65 and 455.10 is: 682.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.86 : 799.65 = 455.10 : x
  2. Step 2: Convert to fraction form
    532.86/799.65 = 455.10/x
  3. Step 3: Cross multiply
    532.86x = 799.65 × 455.10
  4. Step 4: Simplify right side
    532.86x = 363,920.72
  5. Step 5: Solve for x
    x = 363,920.72/532.86
  6. Step 6: Final answer
    x = 682.96

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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.