Home / 2,153,123.87-3,229,578.43-805,187.37

Finding the Fourth Proportional to 2,153,123.87, 3,229,578.43 and 805,187.37

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Solution

The fourth proportional to 2,153,123.87, 3,229,578.43 and 805,187.37 is: 1,207,740.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153,123.87 : 3,229,578.43 = 805,187.37 : x
  2. Step 2: Convert to fraction form
    2,153,123.87/3,229,578.43 = 805,187.37/x
  3. Step 3: Cross multiply
    2,153,123.87x = 3,229,578.43 × 805,187.37
  4. Step 4: Simplify right side
    2,153,123.87x = 2,600,415,762,260.43
  5. Step 5: Solve for x
    x = 2,600,415,762,260.43/2,153,123.87
  6. Step 6: Final answer
    x = 1,207,740.90

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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.