Home / 665,003.10-997,650.45-328,205.10

Finding the Fourth Proportional to 665,003.10, 997,650.45 and 328,205.10

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Solution

The fourth proportional to 665,003.10, 997,650.45 and 328,205.10 is: 492,379.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,003.10 : 997,650.45 = 328,205.10 : x
  2. Step 2: Convert to fraction form
    665,003.10/997,650.45 = 328,205.10/x
  3. Step 3: Cross multiply
    665,003.10x = 997,650.45 × 328,205.10
  4. Step 4: Simplify right side
    665,003.10x = 327,433,965,707.30
  5. Step 5: Solve for x
    x = 327,433,965,707.30/665,003.10
  6. Step 6: Final answer
    x = 492,379.61

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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.