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Finding the Fourth Proportional to 699.93, 963.93 and 611.37

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Solution

The fourth proportional to 699.93, 963.93 and 611.37 is: 841.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    699.93 : 963.93 = 611.37 : x
  2. Step 2: Convert to fraction form
    699.93/963.93 = 611.37/x
  3. Step 3: Cross multiply
    699.93x = 963.93 × 611.37
  4. Step 4: Simplify right side
    699.93x = 589,317.88
  5. Step 5: Solve for x
    x = 589,317.88/699.93
  6. Step 6: Final answer
    x = 841.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.