Home / 456,983.72-685,615.71-204,476.75

Finding the Fourth Proportional to 456,983.72, 685,615.71 and 204,476.75

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Solution

The fourth proportional to 456,983.72, 685,615.71 and 204,476.75 is: 306,777.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,983.72 : 685,615.71 = 204,476.75 : x
  2. Step 2: Convert to fraction form
    456,983.72/685,615.71 = 204,476.75/x
  3. Step 3: Cross multiply
    456,983.72x = 685,615.71 × 204,476.75
  4. Step 4: Simplify right side
    456,983.72x = 140,192,467,679.28
  5. Step 5: Solve for x
    x = 140,192,467,679.28/456,983.72
  6. Step 6: Final answer
    x = 306,777.82

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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.