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Finding the Fourth Proportional to 579,954.50, 800,335.56 and 321,870.44

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Solution

The fourth proportional to 579,954.50, 800,335.56 and 321,870.44 is: 444,180.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,954.50 : 800,335.56 = 321,870.44 : x
  2. Step 2: Convert to fraction form
    579,954.50/800,335.56 = 321,870.44/x
  3. Step 3: Cross multiply
    579,954.50x = 800,335.56 × 321,870.44
  4. Step 4: Simplify right side
    579,954.50x = 257,604,358,844.85
  5. Step 5: Solve for x
    x = 257,604,358,844.85/579,954.50
  6. Step 6: Final answer
    x = 444,180.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.