Home / 1,646,778.90-2,470,171.14-1,081,729.20

Finding the Fourth Proportional to 1,646,778.90, 2,470,171.14 and 1,081,729.20

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Solution

The fourth proportional to 1,646,778.90, 2,470,171.14 and 1,081,729.20 is: 1,622,595.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,646,778.90 : 2,470,171.14 = 1,081,729.20 : x
  2. Step 2: Convert to fraction form
    1,646,778.90/2,470,171.14 = 1,081,729.20/x
  3. Step 3: Cross multiply
    1,646,778.90x = 2,470,171.14 × 1,081,729.20
  4. Step 4: Simplify right side
    1,646,778.90x = 2,672,056,251,135.29
  5. Step 5: Solve for x
    x = 2,672,056,251,135.29/1,646,778.90
  6. Step 6: Final answer
    x = 1,622,595.63

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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.