Home / 873,629.28-1,205,408.92-491,516.64

Finding the Fourth Proportional to 873,629.28, 1,205,408.92 and 491,516.64

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Solution

The fourth proportional to 873,629.28, 1,205,408.92 and 491,516.64 is: 678,180.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,629.28 : 1,205,408.92 = 491,516.64 : x
  2. Step 2: Convert to fraction form
    873,629.28/1,205,408.92 = 491,516.64/x
  3. Step 3: Cross multiply
    873,629.28x = 1,205,408.92 × 491,516.64
  4. Step 4: Simplify right side
    873,629.28x = 592,478,542,184.43
  5. Step 5: Solve for x
    x = 592,478,542,184.43/873,629.28
  6. Step 6: Final answer
    x = 678,180.73

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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.