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Finding the Fourth Proportional to 613.66, 914.57 and 608.56

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Solution

The fourth proportional to 613.66, 914.57 and 608.56 is: 906.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    613.66 : 914.57 = 608.56 : x
  2. Step 2: Convert to fraction form
    613.66/914.57 = 608.56/x
  3. Step 3: Cross multiply
    613.66x = 914.57 × 608.56
  4. Step 4: Simplify right side
    613.66x = 556,570.72
  5. Step 5: Solve for x
    x = 556,570.72/613.66
  6. Step 6: Final answer
    x = 906.97

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1.5x scale

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.