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Finding the Fourth Proportional to 614.99, 921.07 and 484.08

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Solution

The fourth proportional to 614.99, 921.07 and 484.08 is: 725.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.99 : 921.07 = 484.08 : x
  2. Step 2: Convert to fraction form
    614.99/921.07 = 484.08/x
  3. Step 3: Cross multiply
    614.99x = 921.07 × 484.08
  4. Step 4: Simplify right side
    614.99x = 445,868.72
  5. Step 5: Solve for x
    x = 445,868.72/614.99
  6. Step 6: Final answer
    x = 725.00

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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.