Home / 825,579.89-1,238,761.18-398,876.52

Finding the Fourth Proportional to 825,579.89, 1,238,761.18 and 398,876.52

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Solution

The fourth proportional to 825,579.89, 1,238,761.18 and 398,876.52 is: 598,503.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,579.89 : 1,238,761.18 = 398,876.52 : x
  2. Step 2: Convert to fraction form
    825,579.89/1,238,761.18 = 398,876.52/x
  3. Step 3: Cross multiply
    825,579.89x = 1,238,761.18 × 398,876.52
  4. Step 4: Simplify right side
    825,579.89x = 494,112,747,274.96
  5. Step 5: Solve for x
    x = 494,112,747,274.96/825,579.89
  6. Step 6: Final answer
    x = 598,503.86

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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.