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Finding the Fourth Proportional to 866.56, 1,300.46 and 700.18

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Solution

The fourth proportional to 866.56, 1,300.46 and 700.18 is: 1,050.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    866.56 : 1,300.46 = 700.18 : x
  2. Step 2: Convert to fraction form
    866.56/1,300.46 = 700.18/x
  3. Step 3: Cross multiply
    866.56x = 1,300.46 × 700.18
  4. Step 4: Simplify right side
    866.56x = 910,556.08
  5. Step 5: Solve for x
    x = 910,556.08/866.56
  6. Step 6: Final answer
    x = 1,050.77

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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.