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Finding the Fourth Proportional to 422,977.91, 632,984.30 and 303,166.97

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Solution

The fourth proportional to 422,977.91, 632,984.30 and 303,166.97 is: 453,687.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,977.91 : 632,984.30 = 303,166.97 : x
  2. Step 2: Convert to fraction form
    422,977.91/632,984.30 = 303,166.97/x
  3. Step 3: Cross multiply
    422,977.91x = 632,984.30 × 303,166.97
  4. Step 4: Simplify right side
    422,977.91x = 191,899,927,607.82
  5. Step 5: Solve for x
    x = 191,899,927,607.82/422,977.91
  6. Step 6: Final answer
    x = 453,687.82

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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.