Home / 685,222.83-1,027,156.20-324,760.17

Finding the Fourth Proportional to 685,222.83, 1,027,156.20 and 324,760.17

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Solution

The fourth proportional to 685,222.83, 1,027,156.20 and 324,760.17 is: 486,818.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,222.83 : 1,027,156.20 = 324,760.17 : x
  2. Step 2: Convert to fraction form
    685,222.83/1,027,156.20 = 324,760.17/x
  3. Step 3: Cross multiply
    685,222.83x = 1,027,156.20 × 324,760.17
  4. Step 4: Simplify right side
    685,222.83x = 333,579,422,128.55
  5. Step 5: Solve for x
    x = 333,579,422,128.55/685,222.83
  6. Step 6: Final answer
    x = 486,818.90

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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.