Home / 1,980,914.67-2,970,891.41-914,930.91

Finding the Fourth Proportional to 1,980,914.67, 2,970,891.41 and 914,930.91

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Solution

The fourth proportional to 1,980,914.67, 2,970,891.41 and 914,930.91 is: 1,372,174.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980,914.67 : 2,970,891.41 = 914,930.91 : x
  2. Step 2: Convert to fraction form
    1,980,914.67/2,970,891.41 = 914,930.91/x
  3. Step 3: Cross multiply
    1,980,914.67x = 2,970,891.41 × 914,930.91
  4. Step 4: Simplify right side
    1,980,914.67x = 2,718,160,376,687.83
  5. Step 5: Solve for x
    x = 2,718,160,376,687.83/1,980,914.67
  6. Step 6: Final answer
    x = 1,372,174.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.