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Finding the Fourth Proportional to 667,099.44, 920,604.47 and 361,182.20

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Solution

The fourth proportional to 667,099.44, 920,604.47 and 361,182.20 is: 498,435.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,099.44 : 920,604.47 = 361,182.20 : x
  2. Step 2: Convert to fraction form
    667,099.44/920,604.47 = 361,182.20/x
  3. Step 3: Cross multiply
    667,099.44x = 920,604.47 × 361,182.20
  4. Step 4: Simplify right side
    667,099.44x = 332,505,941,395.50
  5. Step 5: Solve for x
    x = 332,505,941,395.50/667,099.44
  6. Step 6: Final answer
    x = 498,435.35

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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.