Home / 805,945.32-1,208,910.69-300,489.12

Finding the Fourth Proportional to 805,945.32, 1,208,910.69 and 300,489.12

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Solution

The fourth proportional to 805,945.32, 1,208,910.69 and 300,489.12 is: 450,730.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,945.32 : 1,208,910.69 = 300,489.12 : x
  2. Step 2: Convert to fraction form
    805,945.32/1,208,910.69 = 300,489.12/x
  3. Step 3: Cross multiply
    805,945.32x = 1,208,910.69 × 300,489.12
  4. Step 4: Simplify right side
    805,945.32x = 363,264,509,396.69
  5. Step 5: Solve for x
    x = 363,264,509,396.69/805,945.32
  6. Step 6: Final answer
    x = 450,730.96

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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.