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Finding the Fourth Proportional to 614.33, 914.99 and 611.34

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Solution

The fourth proportional to 614.33, 914.99 and 611.34 is: 910.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.33 : 914.99 = 611.34 : x
  2. Step 2: Convert to fraction form
    614.33/914.99 = 611.34/x
  3. Step 3: Cross multiply
    614.33x = 914.99 × 611.34
  4. Step 4: Simplify right side
    614.33x = 559,366.93
  5. Step 5: Solve for x
    x = 559,366.93/614.33
  6. Step 6: Final answer
    x = 910.54

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.