Home / 1,857,997.98-2,786,328.70-643,244.76

Finding the Fourth Proportional to 1,857,997.98, 2,786,328.70 and 643,244.76

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Solution

The fourth proportional to 1,857,997.98, 2,786,328.70 and 643,244.76 is: 964,635.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,857,997.98 : 2,786,328.70 = 643,244.76 : x
  2. Step 2: Convert to fraction form
    1,857,997.98/2,786,328.70 = 643,244.76/x
  3. Step 3: Cross multiply
    1,857,997.98x = 2,786,328.70 × 643,244.76
  4. Step 4: Simplify right side
    1,857,997.98x = 1,792,291,335,912.61
  5. Step 5: Solve for x
    x = 1,792,291,335,912.61/1,857,997.98
  6. Step 6: Final answer
    x = 964,635.78

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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.