Home / 5,147,789.70-7,721,649.90-1,309,579.17

Finding the Fourth Proportional to 5,147,789.70, 7,721,649.90 and 1,309,579.17

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Solution

The fourth proportional to 5,147,789.70, 7,721,649.90 and 1,309,579.17 is: 1,964,359.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147,789.70 : 7,721,649.90 = 1,309,579.17 : x
  2. Step 2: Convert to fraction form
    5,147,789.70/7,721,649.90 = 1,309,579.17/x
  3. Step 3: Cross multiply
    5,147,789.70x = 7,721,649.90 × 1,309,579.17
  4. Step 4: Simplify right side
    5,147,789.70x = 10,112,111,867,072.58
  5. Step 5: Solve for x
    x = 10,112,111,867,072.58/5,147,789.70
  6. Step 6: Final answer
    x = 1,964,359.94

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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.