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Finding the Fourth Proportional to 614.93, 923.06 and 409.93

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Solution

The fourth proportional to 614.93, 923.06 and 409.93 is: 615.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.93 : 923.06 = 409.93 : x
  2. Step 2: Convert to fraction form
    614.93/923.06 = 409.93/x
  3. Step 3: Cross multiply
    614.93x = 923.06 × 409.93
  4. Step 4: Simplify right side
    614.93x = 378,388.70
  5. Step 5: Solve for x
    x = 378,388.70/614.93
  6. Step 6: Final answer
    x = 615.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.