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Finding the Fourth Proportional to 667,265.39, 920,826.73 and 361,342.10

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Solution

The fourth proportional to 667,265.39, 920,826.73 and 361,342.10 is: 498,652.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,265.39 : 920,826.73 = 361,342.10 : x
  2. Step 2: Convert to fraction form
    667,265.39/920,826.73 = 361,342.10/x
  3. Step 3: Cross multiply
    667,265.39x = 920,826.73 × 361,342.10
  4. Step 4: Simplify right side
    667,265.39x = 332,733,466,244.80
  5. Step 5: Solve for x
    x = 332,733,466,244.80/667,265.39
  6. Step 6: Final answer
    x = 498,652.37

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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.