Home / 395,942.20-593,985.30-129,628.60

Finding the Fourth Proportional to 395,942.20, 593,985.30 and 129,628.60

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Solution

The fourth proportional to 395,942.20, 593,985.30 and 129,628.60 is: 194,466.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,942.20 : 593,985.30 = 129,628.60 : x
  2. Step 2: Convert to fraction form
    395,942.20/593,985.30 = 129,628.60/x
  3. Step 3: Cross multiply
    395,942.20x = 593,985.30 × 129,628.60
  4. Step 4: Simplify right side
    395,942.20x = 76,997,482,859.58
  5. Step 5: Solve for x
    x = 76,997,482,859.58/395,942.20
  6. Step 6: Final answer
    x = 194,466.47

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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.