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Finding the Fourth Proportional to 529.76, 793.88 and 474.56

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Solution

The fourth proportional to 529.76, 793.88 and 474.56 is: 711.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.76 : 793.88 = 474.56 : x
  2. Step 2: Convert to fraction form
    529.76/793.88 = 474.56/x
  3. Step 3: Cross multiply
    529.76x = 793.88 × 474.56
  4. Step 4: Simplify right side
    529.76x = 376,743.69
  5. Step 5: Solve for x
    x = 376,743.69/529.76
  6. Step 6: Final answer
    x = 711.16

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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.