Home / 1,269,911.70-1,752,473.16-689,137.20

Finding the Fourth Proportional to 1,269,911.70, 1,752,473.16 and 689,137.20

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Solution

The fourth proportional to 1,269,911.70, 1,752,473.16 and 689,137.20 is: 951,006.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269,911.70 : 1,752,473.16 = 689,137.20 : x
  2. Step 2: Convert to fraction form
    1,269,911.70/1,752,473.16 = 689,137.20/x
  3. Step 3: Cross multiply
    1,269,911.70x = 1,752,473.16 × 689,137.20
  4. Step 4: Simplify right side
    1,269,911.70x = 1,207,694,446,557.55
  5. Step 5: Solve for x
    x = 1,207,694,446,557.55/1,269,911.70
  6. Step 6: Final answer
    x = 951,006.63

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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.