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Finding the Fourth Proportional to 608.59, 838.15 and 529.87

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Solution

The fourth proportional to 608.59, 838.15 and 529.87 is: 729.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.59 : 838.15 = 529.87 : x
  2. Step 2: Convert to fraction form
    608.59/838.15 = 529.87/x
  3. Step 3: Cross multiply
    608.59x = 838.15 × 529.87
  4. Step 4: Simplify right side
    608.59x = 444,106.33
  5. Step 5: Solve for x
    x = 444,106.33/608.59
  6. Step 6: Final answer
    x = 729.73

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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.