Home / 2,379,221.71-3,283,385.42-1,291,491.74

Finding the Fourth Proportional to 2,379,221.71, 3,283,385.42 and 1,291,491.74

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Solution

The fourth proportional to 2,379,221.71, 3,283,385.42 and 1,291,491.74 is: 1,782,290.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,379,221.71 : 3,283,385.42 = 1,291,491.74 : x
  2. Step 2: Convert to fraction form
    2,379,221.71/3,283,385.42 = 1,291,491.74/x
  3. Step 3: Cross multiply
    2,379,221.71x = 3,283,385.42 × 1,291,491.74
  4. Step 4: Simplify right side
    2,379,221.71x = 4,240,465,160,603.62
  5. Step 5: Solve for x
    x = 4,240,465,160,603.62/2,379,221.71
  6. Step 6: Final answer
    x = 1,782,290.88

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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.