Home / 821,629.20-1,230,370.20-655,741.20

Finding the Fourth Proportional to 821,629.20, 1,230,370.20 and 655,741.20

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Solution

The fourth proportional to 821,629.20, 1,230,370.20 and 655,741.20 is: 981,956.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,629.20 : 1,230,370.20 = 655,741.20 : x
  2. Step 2: Convert to fraction form
    821,629.20/1,230,370.20 = 655,741.20/x
  3. Step 3: Cross multiply
    821,629.20x = 1,230,370.20 × 655,741.20
  4. Step 4: Simplify right side
    821,629.20x = 806,804,431,392.24
  5. Step 5: Solve for x
    x = 806,804,431,392.24/821,629.20
  6. Step 6: Final answer
    x = 981,956.86

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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.