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Finding the Fourth Proportional to 750.26, 1,118.98 and 711.38

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Solution

The fourth proportional to 750.26, 1,118.98 and 711.38 is: 1,060.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    750.26 : 1,118.98 = 711.38 : x
  2. Step 2: Convert to fraction form
    750.26/1,118.98 = 711.38/x
  3. Step 3: Cross multiply
    750.26x = 1,118.98 × 711.38
  4. Step 4: Simplify right side
    750.26x = 796,019.99
  5. Step 5: Solve for x
    x = 796,019.99/750.26
  6. Step 6: Final answer
    x = 1,060.99

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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.