Home / 1,128,213.20-1,692,396.60-329,493.20

Finding the Fourth Proportional to 1,128,213.20, 1,692,396.60 and 329,493.20

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Solution

The fourth proportional to 1,128,213.20, 1,692,396.60 and 329,493.20 is: 494,262.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,213.20 : 1,692,396.60 = 329,493.20 : x
  2. Step 2: Convert to fraction form
    1,128,213.20/1,692,396.60 = 329,493.20/x
  3. Step 3: Cross multiply
    1,128,213.20x = 1,692,396.60 × 329,493.20
  4. Step 4: Simplify right side
    1,128,213.20x = 557,633,171,403.12
  5. Step 5: Solve for x
    x = 557,633,171,403.12/1,128,213.20
  6. Step 6: Final answer
    x = 494,262.23

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1.5x scale

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.