Home / 685,892.18-1,028,869.86-331,204.52

Finding the Fourth Proportional to 685,892.18, 1,028,869.86 and 331,204.52

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Solution

The fourth proportional to 685,892.18, 1,028,869.86 and 331,204.52 is: 496,822.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,892.18 : 1,028,869.86 = 331,204.52 : x
  2. Step 2: Convert to fraction form
    685,892.18/1,028,869.86 = 331,204.52/x
  3. Step 3: Cross multiply
    685,892.18x = 1,028,869.86 × 331,204.52
  4. Step 4: Simplify right side
    685,892.18x = 340,766,348,123.77
  5. Step 5: Solve for x
    x = 340,766,348,123.77/685,892.18
  6. Step 6: Final answer
    x = 496,822.03

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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.