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Finding the Fourth Proportional to 899.03, 1,240.19 and 566.83

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Solution

The fourth proportional to 899.03, 1,240.19 and 566.83 is: 781.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    899.03 : 1,240.19 = 566.83 : x
  2. Step 2: Convert to fraction form
    899.03/1,240.19 = 566.83/x
  3. Step 3: Cross multiply
    899.03x = 1,240.19 × 566.83
  4. Step 4: Simplify right side
    899.03x = 702,976.90
  5. Step 5: Solve for x
    x = 702,976.90/899.03
  6. Step 6: Final answer
    x = 781.93

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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.