Home / 2,152,281.76-2,970,087.88-1,172,198.90

Finding the Fourth Proportional to 2,152,281.76, 2,970,087.88 and 1,172,198.90

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Solution

The fourth proportional to 2,152,281.76, 2,970,087.88 and 1,172,198.90 is: 1,617,601.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,152,281.76 : 2,970,087.88 = 1,172,198.90 : x
  2. Step 2: Convert to fraction form
    2,152,281.76/2,970,087.88 = 1,172,198.90/x
  3. Step 3: Cross multiply
    2,152,281.76x = 2,970,087.88 × 1,172,198.90
  4. Step 4: Simplify right side
    2,152,281.76x = 3,481,533,745,839.33
  5. Step 5: Solve for x
    x = 3,481,533,745,839.33/2,152,281.76
  6. Step 6: Final answer
    x = 1,617,601.29

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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.