Home / 1,620,746.70-2,431,540.35-861,964.22

Finding the Fourth Proportional to 1,620,746.70, 2,431,540.35 and 861,964.22

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Solution

The fourth proportional to 1,620,746.70, 2,431,540.35 and 861,964.22 is: 1,293,169.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,746.70 : 2,431,540.35 = 861,964.22 : x
  2. Step 2: Convert to fraction form
    1,620,746.70/2,431,540.35 = 861,964.22/x
  3. Step 3: Cross multiply
    1,620,746.70x = 2,431,540.35 × 861,964.22
  4. Step 4: Simplify right side
    1,620,746.70x = 2,095,900,769,028.58
  5. Step 5: Solve for x
    x = 2,095,900,769,028.58/1,620,746.70
  6. Step 6: Final answer
    x = 1,293,169.85

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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.