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Finding the Fourth Proportional to 483,704.10, 667,256.67 and 287,358.48

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Solution

The fourth proportional to 483,704.10, 667,256.67 and 287,358.48 is: 396,403.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,704.10 : 667,256.67 = 287,358.48 : x
  2. Step 2: Convert to fraction form
    483,704.10/667,256.67 = 287,358.48/x
  3. Step 3: Cross multiply
    483,704.10x = 667,256.67 × 287,358.48
  4. Step 4: Simplify right side
    483,704.10x = 191,741,862,461.06
  5. Step 5: Solve for x
    x = 191,741,862,461.06/483,704.10
  6. Step 6: Final answer
    x = 396,403.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.