Home / 439,780.20-659,670.30-140,282.70

Finding the Fourth Proportional to 439,780.20, 659,670.30 and 140,282.70

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Solution

The fourth proportional to 439,780.20, 659,670.30 and 140,282.70 is: 210,424.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,780.20 : 659,670.30 = 140,282.70 : x
  2. Step 2: Convert to fraction form
    439,780.20/659,670.30 = 140,282.70/x
  3. Step 3: Cross multiply
    439,780.20x = 659,670.30 × 140,282.70
  4. Step 4: Simplify right side
    439,780.20x = 92,540,330,793.81
  5. Step 5: Solve for x
    x = 92,540,330,793.81/439,780.20
  6. Step 6: Final answer
    x = 210,424.05

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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.