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Finding the Fourth Proportional to 697.76, 1,044.60 and 537.32

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Solution

The fourth proportional to 697.76, 1,044.60 and 537.32 is: 804.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    697.76 : 1,044.60 = 537.32 : x
  2. Step 2: Convert to fraction form
    697.76/1,044.60 = 537.32/x
  3. Step 3: Cross multiply
    697.76x = 1,044.60 × 537.32
  4. Step 4: Simplify right side
    697.76x = 561,284.47
  5. Step 5: Solve for x
    x = 561,284.47/697.76
  6. Step 6: Final answer
    x = 804.41

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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.