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Finding the Fourth Proportional to 579,964.61, 800,349.44 and 321,880.43

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Solution

The fourth proportional to 579,964.61, 800,349.44 and 321,880.43 is: 444,194.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,964.61 : 800,349.44 = 321,880.43 : x
  2. Step 2: Convert to fraction form
    579,964.61/800,349.44 = 321,880.43/x
  3. Step 3: Cross multiply
    579,964.61x = 800,349.44 × 321,880.43
  4. Step 4: Simplify right side
    579,964.61x = 257,616,822,288.93
  5. Step 5: Solve for x
    x = 257,616,822,288.93/579,964.61
  6. Step 6: Final answer
    x = 444,194.04

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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.