Home / 767,836.80-1,151,236.80-408,067.20

Finding the Fourth Proportional to 767,836.80, 1,151,236.80 and 408,067.20

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Solution

The fourth proportional to 767,836.80, 1,151,236.80 and 408,067.20 is: 611,825.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,836.80 : 1,151,236.80 = 408,067.20 : x
  2. Step 2: Convert to fraction form
    767,836.80/1,151,236.80 = 408,067.20/x
  3. Step 3: Cross multiply
    767,836.80x = 1,151,236.80 × 408,067.20
  4. Step 4: Simplify right side
    767,836.80x = 469,781,977,512.96
  5. Step 5: Solve for x
    x = 469,781,977,512.96/767,836.80
  6. Step 6: Final answer
    x = 611,825.30

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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.