Home / 3,171,878.13-4,377,196.62-1,721,574.09

Finding the Fourth Proportional to 3,171,878.13, 4,377,196.62 and 1,721,574.09

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Solution

The fourth proportional to 3,171,878.13, 4,377,196.62 and 1,721,574.09 is: 2,375,774.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171,878.13 : 4,377,196.62 = 1,721,574.09 : x
  2. Step 2: Convert to fraction form
    3,171,878.13/4,377,196.62 = 1,721,574.09/x
  3. Step 3: Cross multiply
    3,171,878.13x = 4,377,196.62 × 1,721,574.09
  4. Step 4: Simplify right side
    3,171,878.13x = 7,535,668,287,827.58
  5. Step 5: Solve for x
    x = 7,535,668,287,827.58/3,171,878.13
  6. Step 6: Final answer
    x = 2,375,774.85

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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.