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Finding the Fourth Proportional to 899.22, 1,240.11 and 567.07

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Solution

The fourth proportional to 899.22, 1,240.11 and 567.07 is: 782.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    899.22 : 1,240.11 = 567.07 : x
  2. Step 2: Convert to fraction form
    899.22/1,240.11 = 567.07/x
  3. Step 3: Cross multiply
    899.22x = 1,240.11 × 567.07
  4. Step 4: Simplify right side
    899.22x = 703,226.34
  5. Step 5: Solve for x
    x = 703,226.34/899.22
  6. Step 6: Final answer
    x = 782.04

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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.