Home / 1,214,652.80-1,821,979.20-415,863.20

Finding the Fourth Proportional to 1,214,652.80, 1,821,979.20 and 415,863.20

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Solution

The fourth proportional to 1,214,652.80, 1,821,979.20 and 415,863.20 is: 623,794.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,652.80 : 1,821,979.20 = 415,863.20 : x
  2. Step 2: Convert to fraction form
    1,214,652.80/1,821,979.20 = 415,863.20/x
  3. Step 3: Cross multiply
    1,214,652.80x = 1,821,979.20 × 415,863.20
  4. Step 4: Simplify right side
    1,214,652.80x = 757,694,100,445.44
  5. Step 5: Solve for x
    x = 757,694,100,445.44/1,214,652.80
  6. Step 6: Final answer
    x = 623,794.80

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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.