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Finding the Fourth Proportional to 534.59, 736.53 and 445.74

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Solution

The fourth proportional to 534.59, 736.53 and 445.74 is: 614.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.59 : 736.53 = 445.74 : x
  2. Step 2: Convert to fraction form
    534.59/736.53 = 445.74/x
  3. Step 3: Cross multiply
    534.59x = 736.53 × 445.74
  4. Step 4: Simplify right side
    534.59x = 328,300.88
  5. Step 5: Solve for x
    x = 328,300.88/534.59
  6. Step 6: Final answer
    x = 614.12

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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.