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Finding the Fourth Proportional to 900.73, 1,241.77 and 568.99

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Solution

The fourth proportional to 900.73, 1,241.77 and 568.99 is: 784.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    900.73 : 1,241.77 = 568.99 : x
  2. Step 2: Convert to fraction form
    900.73/1,241.77 = 568.99/x
  3. Step 3: Cross multiply
    900.73x = 1,241.77 × 568.99
  4. Step 4: Simplify right side
    900.73x = 706,545.66
  5. Step 5: Solve for x
    x = 706,545.66/900.73
  6. Step 6: Final answer
    x = 784.42

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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.