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Finding the Fourth Proportional to 532.17, 793.70 and 455.63

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Solution

The fourth proportional to 532.17, 793.70 and 455.63 is: 679.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.17 : 793.70 = 455.63 : x
  2. Step 2: Convert to fraction form
    532.17/793.70 = 455.63/x
  3. Step 3: Cross multiply
    532.17x = 793.70 × 455.63
  4. Step 4: Simplify right side
    532.17x = 361,628.99
  5. Step 5: Solve for x
    x = 361,628.99/532.17
  6. Step 6: Final answer
    x = 679.54

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.