Home / 1,805,743.70-2,491,872.30-989,919.48

Finding the Fourth Proportional to 1,805,743.70, 2,491,872.30 and 989,919.48

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Solution

The fourth proportional to 1,805,743.70, 2,491,872.30 and 989,919.48 is: 1,366,059.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,805,743.70 : 2,491,872.30 = 989,919.48 : x
  2. Step 2: Convert to fraction form
    1,805,743.70/2,491,872.30 = 989,919.48/x
  3. Step 3: Cross multiply
    1,805,743.70x = 2,491,872.30 × 989,919.48
  4. Step 4: Simplify right side
    1,805,743.70x = 2,466,752,931,442.40
  5. Step 5: Solve for x
    x = 2,466,752,931,442.40/1,805,743.70
  6. Step 6: Final answer
    x = 1,366,059.28

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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.