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Finding the Fourth Proportional to 673,314.75, 929,174.40 and 371,508.75

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Solution

The fourth proportional to 673,314.75, 929,174.40 and 371,508.75 is: 512,682.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,314.75 : 929,174.40 = 371,508.75 : x
  2. Step 2: Convert to fraction form
    673,314.75/929,174.40 = 371,508.75/x
  3. Step 3: Cross multiply
    673,314.75x = 929,174.40 × 371,508.75
  4. Step 4: Simplify right side
    673,314.75x = 345,196,419,876
  5. Step 5: Solve for x
    x = 345,196,419,876/673,314.75
  6. Step 6: Final answer
    x = 512,682.10

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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.