Home / 3,171,794.40-4,376,965.14-1,721,460.78

Finding the Fourth Proportional to 3,171,794.40, 4,376,965.14 and 1,721,460.78

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Solution

The fourth proportional to 3,171,794.40, 4,376,965.14 and 1,721,460.78 is: 2,375,555.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171,794.40 : 4,376,965.14 = 1,721,460.78 : x
  2. Step 2: Convert to fraction form
    3,171,794.40/4,376,965.14 = 1,721,460.78/x
  3. Step 3: Cross multiply
    3,171,794.40x = 4,376,965.14 × 1,721,460.78
  4. Step 4: Simplify right side
    3,171,794.40x = 7,534,773,823,937.21
  5. Step 5: Solve for x
    x = 7,534,773,823,937.21/3,171,794.40
  6. Step 6: Final answer
    x = 2,375,555.56

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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.