Home / 769,836-1,062,367.20-443,212.96

Finding the Fourth Proportional to 769,836, 1,062,367.20 and 443,212.96

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Solution

The fourth proportional to 769,836, 1,062,367.20 and 443,212.96 is: 611,630.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,836 : 1,062,367.20 = 443,212.96 : x
  2. Step 2: Convert to fraction form
    769,836/1,062,367.20 = 443,212.96/x
  3. Step 3: Cross multiply
    769,836x = 1,062,367.20 × 443,212.96
  4. Step 4: Simplify right side
    769,836x = 470,854,911,318.91
  5. Step 5: Solve for x
    x = 470,854,911,318.91/769,836
  6. Step 6: Final answer
    x = 611,630.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.