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Finding the Fourth Proportional to 614.25, 848.39 and 406.89

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Solution

The fourth proportional to 614.25, 848.39 and 406.89 is: 561.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.25 : 848.39 = 406.89 : x
  2. Step 2: Convert to fraction form
    614.25/848.39 = 406.89/x
  3. Step 3: Cross multiply
    614.25x = 848.39 × 406.89
  4. Step 4: Simplify right side
    614.25x = 345,199.37
  5. Step 5: Solve for x
    x = 345,199.37/614.25
  6. Step 6: Final answer
    x = 561.99

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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.