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Finding the Fourth Proportional to 522.39, 720.22 and 433.55

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Solution

The fourth proportional to 522.39, 720.22 and 433.55 is: 597.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    522.39 : 720.22 = 433.55 : x
  2. Step 2: Convert to fraction form
    522.39/720.22 = 433.55/x
  3. Step 3: Cross multiply
    522.39x = 720.22 × 433.55
  4. Step 4: Simplify right side
    522.39x = 312,251.38
  5. Step 5: Solve for x
    x = 312,251.38/522.39
  6. Step 6: Final answer
    x = 597.74

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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.