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Finding the Fourth Proportional to 899.22, 1,240.53 and 604.58

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Solution

The fourth proportional to 899.22, 1,240.53 and 604.58 is: 834.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    899.22 : 1,240.53 = 604.58 : x
  2. Step 2: Convert to fraction form
    899.22/1,240.53 = 604.58/x
  3. Step 3: Cross multiply
    899.22x = 1,240.53 × 604.58
  4. Step 4: Simplify right side
    899.22x = 749,993.42
  5. Step 5: Solve for x
    x = 749,993.42/899.22
  6. Step 6: Final answer
    x = 834.05

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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.