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Finding the Fourth Proportional to 579,911.56, 800,284.26 and 321,793

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Solution

The fourth proportional to 579,911.56, 800,284.26 and 321,793 is: 444,077.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,911.56 : 800,284.26 = 321,793 : x
  2. Step 2: Convert to fraction form
    579,911.56/800,284.26 = 321,793/x
  3. Step 3: Cross multiply
    579,911.56x = 800,284.26 × 321,793
  4. Step 4: Simplify right side
    579,911.56x = 257,525,872,878.18
  5. Step 5: Solve for x
    x = 257,525,872,878.18/579,911.56
  6. Step 6: Final answer
    x = 444,077.84

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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.