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Finding the Fourth Proportional to 669,305.72, 1,003,745.72 and 219,922.58

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Solution

The fourth proportional to 669,305.72, 1,003,745.72 and 219,922.58 is: 329,813.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,305.72 : 1,003,745.72 = 219,922.58 : x
  2. Step 2: Convert to fraction form
    669,305.72/1,003,745.72 = 219,922.58/x
  3. Step 3: Cross multiply
    669,305.72x = 1,003,745.72 × 219,922.58
  4. Step 4: Simplify right side
    669,305.72x = 220,746,348,406.36
  5. Step 5: Solve for x
    x = 220,746,348,406.36/669,305.72
  6. Step 6: Final answer
    x = 329,813.93

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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.