Home / 1,348,311.20-2,019,842.40-814,245.80

Finding the Fourth Proportional to 1,348,311.20, 2,019,842.40 and 814,245.80

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Solution

The fourth proportional to 1,348,311.20, 2,019,842.40 and 814,245.80 is: 1,219,783.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348,311.20 : 2,019,842.40 = 814,245.80 : x
  2. Step 2: Convert to fraction form
    1,348,311.20/2,019,842.40 = 814,245.80/x
  3. Step 3: Cross multiply
    1,348,311.20x = 2,019,842.40 × 814,245.80
  4. Step 4: Simplify right side
    1,348,311.20x = 1,644,648,190,861.92
  5. Step 5: Solve for x
    x = 1,644,648,190,861.92/1,348,311.20
  6. Step 6: Final answer
    x = 1,219,783.82

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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.