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Finding the Fourth Proportional to 900.00, 1,241.99 and 507.03

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Solution

The fourth proportional to 900.00, 1,241.99 and 507.03 is: 699.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    900.00 : 1,241.99 = 507.03 : x
  2. Step 2: Convert to fraction form
    900.00/1,241.99 = 507.03/x
  3. Step 3: Cross multiply
    900.00x = 1,241.99 × 507.03
  4. Step 4: Simplify right side
    900.00x = 629,717.44
  5. Step 5: Solve for x
    x = 629,717.44/900.00
  6. Step 6: Final answer
    x = 699.69

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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.