Home / 1,638,942.80-2,458,414.20-930,354.80

Finding the Fourth Proportional to 1,638,942.80, 2,458,414.20 and 930,354.80

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Solution

The fourth proportional to 1,638,942.80, 2,458,414.20 and 930,354.80 is: 1,395,532.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,942.80 : 2,458,414.20 = 930,354.80 : x
  2. Step 2: Convert to fraction form
    1,638,942.80/2,458,414.20 = 930,354.80/x
  3. Step 3: Cross multiply
    1,638,942.80x = 2,458,414.20 × 930,354.80
  4. Step 4: Simplify right side
    1,638,942.80x = 2,287,197,451,358.16
  5. Step 5: Solve for x
    x = 2,287,197,451,358.16/1,638,942.80
  6. Step 6: Final answer
    x = 1,395,532.20

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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.