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Finding the Fourth Proportional to 456,642.15, 682,163.15 and 329,194.72

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Solution

The fourth proportional to 456,642.15, 682,163.15 and 329,194.72 is: 491,773.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,642.15 : 682,163.15 = 329,194.72 : x
  2. Step 2: Convert to fraction form
    456,642.15/682,163.15 = 329,194.72/x
  3. Step 3: Cross multiply
    456,642.15x = 682,163.15 × 329,194.72
  4. Step 4: Simplify right side
    456,642.15x = 224,564,507,158.57
  5. Step 5: Solve for x
    x = 224,564,507,158.57/456,642.15
  6. Step 6: Final answer
    x = 491,773.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.