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Finding the Fourth Proportional to 536.09, 804.43 and 445.87

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Solution

The fourth proportional to 536.09, 804.43 and 445.87 is: 669.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.09 : 804.43 = 445.87 : x
  2. Step 2: Convert to fraction form
    536.09/804.43 = 445.87/x
  3. Step 3: Cross multiply
    536.09x = 804.43 × 445.87
  4. Step 4: Simplify right side
    536.09x = 358,672.77
  5. Step 5: Solve for x
    x = 358,672.77/536.09
  6. Step 6: Final answer
    x = 669.06

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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.