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Finding the Fourth Proportional to 612.35, 837.56 and 602.78

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Solution

The fourth proportional to 612.35, 837.56 and 602.78 is: 824.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    612.35 : 837.56 = 602.78 : x
  2. Step 2: Convert to fraction form
    612.35/837.56 = 602.78/x
  3. Step 3: Cross multiply
    612.35x = 837.56 × 602.78
  4. Step 4: Simplify right side
    612.35x = 504,864.42
  5. Step 5: Solve for x
    x = 504,864.42/612.35
  6. Step 6: Final answer
    x = 824.47

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.