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Finding the Fourth Proportional to 614.39, 848.27 and 393.62

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Solution

The fourth proportional to 614.39, 848.27 and 393.62 is: 543.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.39 : 848.27 = 393.62 : x
  2. Step 2: Convert to fraction form
    614.39/848.27 = 393.62/x
  3. Step 3: Cross multiply
    614.39x = 848.27 × 393.62
  4. Step 4: Simplify right side
    614.39x = 333,892.78
  5. Step 5: Solve for x
    x = 333,892.78/614.39
  6. Step 6: Final answer
    x = 543.46

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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.