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Finding the Fourth Proportional to 576,091.20, 863,407.80 and 220,630.80

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Solution

The fourth proportional to 576,091.20, 863,407.80 and 220,630.80 is: 330,667.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,091.20 : 863,407.80 = 220,630.80 : x
  2. Step 2: Convert to fraction form
    576,091.20/863,407.80 = 220,630.80/x
  3. Step 3: Cross multiply
    576,091.20x = 863,407.80 × 220,630.80
  4. Step 4: Simplify right side
    576,091.20x = 190,494,353,640.24
  5. Step 5: Solve for x
    x = 190,494,353,640.24/576,091.20
  6. Step 6: Final answer
    x = 330,667.01

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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.