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Finding the Fourth Proportional to 575,371.20, 862,327.80 and 219,910.80

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Solution

The fourth proportional to 575,371.20, 862,327.80 and 219,910.80 is: 329,587.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,371.20 : 862,327.80 = 219,910.80 : x
  2. Step 2: Convert to fraction form
    575,371.20/862,327.80 = 219,910.80/x
  3. Step 3: Cross multiply
    575,371.20x = 862,327.80 × 219,910.80
  4. Step 4: Simplify right side
    575,371.20x = 189,635,196,360.24
  5. Step 5: Solve for x
    x = 189,635,196,360.24/575,371.20
  6. Step 6: Final answer
    x = 329,587.57

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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.