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Finding the Fourth Proportional to 613.19, 913.07 and 604.46

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Solution

The fourth proportional to 613.19, 913.07 and 604.46 is: 900.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    613.19 : 913.07 = 604.46 : x
  2. Step 2: Convert to fraction form
    613.19/913.07 = 604.46/x
  3. Step 3: Cross multiply
    613.19x = 913.07 × 604.46
  4. Step 4: Simplify right side
    613.19x = 551,906.70
  5. Step 5: Solve for x
    x = 551,906.70/613.19
  6. Step 6: Final answer
    x = 900.07

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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.