Home / 389,910.20-584,865.30-275,748.80

Finding the Fourth Proportional to 389,910.20, 584,865.30 and 275,748.80

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Solution

The fourth proportional to 389,910.20, 584,865.30 and 275,748.80 is: 413,623.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,910.20 : 584,865.30 = 275,748.80 : x
  2. Step 2: Convert to fraction form
    389,910.20/584,865.30 = 275,748.80/x
  3. Step 3: Cross multiply
    389,910.20x = 584,865.30 × 275,748.80
  4. Step 4: Simplify right side
    389,910.20x = 161,275,904,636.64
  5. Step 5: Solve for x
    x = 161,275,904,636.64/389,910.20
  6. Step 6: Final answer
    x = 413,623.20

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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.