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Finding the Fourth Proportional to 605,143.70, 906,160.35 and 446,513.30

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Solution

The fourth proportional to 605,143.70, 906,160.35 and 446,513.30 is: 668,622.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,143.70 : 906,160.35 = 446,513.30 : x
  2. Step 2: Convert to fraction form
    605,143.70/906,160.35 = 446,513.30/x
  3. Step 3: Cross multiply
    605,143.70x = 906,160.35 × 446,513.30
  4. Step 4: Simplify right side
    605,143.70x = 404,612,648,207.66
  5. Step 5: Solve for x
    x = 404,612,648,207.66/605,143.70
  6. Step 6: Final answer
    x = 668,622.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.