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Finding the Third Proportional to 404.58 and 900.70

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Solution

The third proportional to 404.58 and 900.70 is: 2,005.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    404.58 : 900.70 = 900.70 : x
  2. Step 2: Convert to fraction form
    404.58/900.70 = 900.70/x
  3. Step 3: Cross multiply
    404.58x = 900.70 × 900.70
  4. Step 4: Simplify right side
    404.58x = 811,266.12
  5. Step 5: Solve for x
    x = 811,266.12/404.58
  6. Step 6: Final answer
    x = 2,005.21

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.