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Finding the Fourth Proportional to 575,695.20, 862,813.80 and 220,234.80

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Solution

The fourth proportional to 575,695.20, 862,813.80 and 220,234.80 is: 330,073.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,695.20 : 862,813.80 = 220,234.80 : x
  2. Step 2: Convert to fraction form
    575,695.20/862,813.80 = 220,234.80/x
  3. Step 3: Cross multiply
    575,695.20x = 862,813.80 × 220,234.80
  4. Step 4: Simplify right side
    575,695.20x = 190,021,624,680.24
  5. Step 5: Solve for x
    x = 190,021,624,680.24/575,695.20
  6. Step 6: Final answer
    x = 330,073.32

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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.