Home / 3,171,809.75-4,377,099.56-1,721,505.20

Finding the Fourth Proportional to 3,171,809.75, 4,377,099.56 and 1,721,505.20

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Solution

The fourth proportional to 3,171,809.75, 4,377,099.56 and 1,721,505.20 is: 2,375,678.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171,809.75 : 4,377,099.56 = 1,721,505.20 : x
  2. Step 2: Convert to fraction form
    3,171,809.75/4,377,099.56 = 1,721,505.20/x
  3. Step 3: Cross multiply
    3,171,809.75x = 4,377,099.56 × 1,721,505.20
  4. Step 4: Simplify right side
    3,171,809.75x = 7,535,199,622,964.69
  5. Step 5: Solve for x
    x = 7,535,199,622,964.69/3,171,809.75
  6. Step 6: Final answer
    x = 2,375,678.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.