Home / 2,989,021.20-4,483,531.80-1,979,283.30

Finding the Fourth Proportional to 2,989,021.20, 4,483,531.80 and 1,979,283.30

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Solution

The fourth proportional to 2,989,021.20, 4,483,531.80 and 1,979,283.30 is: 2,968,924.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989,021.20 : 4,483,531.80 = 1,979,283.30 : x
  2. Step 2: Convert to fraction form
    2,989,021.20/4,483,531.80 = 1,979,283.30/x
  3. Step 3: Cross multiply
    2,989,021.20x = 4,483,531.80 × 1,979,283.30
  4. Step 4: Simplify right side
    2,989,021.20x = 8,874,179,616,758.94
  5. Step 5: Solve for x
    x = 8,874,179,616,758.94/2,989,021.20
  6. Step 6: Final answer
    x = 2,968,924.95

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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.