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Finding the Fourth Proportional to 673,490.16, 929,414.52 and 371,682

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Solution

The fourth proportional to 673,490.16, 929,414.52 and 371,682 is: 512,920.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,490.16 : 929,414.52 = 371,682 : x
  2. Step 2: Convert to fraction form
    673,490.16/929,414.52 = 371,682/x
  3. Step 3: Cross multiply
    673,490.16x = 929,414.52 × 371,682
  4. Step 4: Simplify right side
    673,490.16x = 345,446,647,622.64
  5. Step 5: Solve for x
    x = 345,446,647,622.64/673,490.16
  6. Step 6: Final answer
    x = 512,920.11

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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.