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Finding the Fourth Proportional to 899.22, 1,232.84 and 882.78

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Solution

The fourth proportional to 899.22, 1,232.84 and 882.78 is: 1,210.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    899.22 : 1,232.84 = 882.78 : x
  2. Step 2: Convert to fraction form
    899.22/1,232.84 = 882.78/x
  3. Step 3: Cross multiply
    899.22x = 1,232.84 × 882.78
  4. Step 4: Simplify right side
    899.22x = 1,088,322.08
  5. Step 5: Solve for x
    x = 1,088,322.08/899.22
  6. Step 6: Final answer
    x = 1,210.30

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.