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Finding the Fourth Proportional to 535, 737.63 and 446.61

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Solution

The fourth proportional to 535, 737.63 and 446.61 is: 615.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    535 : 737.63 = 446.61 : x
  2. Step 2: Convert to fraction form
    535/737.63 = 446.61/x
  3. Step 3: Cross multiply
    535x = 737.63 × 446.61
  4. Step 4: Simplify right side
    535x = 329,432.93
  5. Step 5: Solve for x
    x = 329,432.93/535
  6. Step 6: Final answer
    x = 615.76

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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.