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Finding the Fourth Proportional to 667,059.57, 920,535.57 and 361,127.88

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Solution

The fourth proportional to 667,059.57, 920,535.57 and 361,127.88 is: 498,352.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,059.57 : 920,535.57 = 361,127.88 : x
  2. Step 2: Convert to fraction form
    667,059.57/920,535.57 = 361,127.88/x
  3. Step 3: Cross multiply
    667,059.57x = 920,535.57 × 361,127.88
  4. Step 4: Simplify right side
    667,059.57x = 332,431,058,858.69
  5. Step 5: Solve for x
    x = 332,431,058,858.69/667,059.57
  6. Step 6: Final answer
    x = 498,352.88

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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.