Home / 3,121,216.20-4,678,325.10-1,323,793.80

Finding the Fourth Proportional to 3,121,216.20, 4,678,325.10 and 1,323,793.80

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Solution

The fourth proportional to 3,121,216.20, 4,678,325.10 and 1,323,793.80 is: 1,984,206.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,216.20 : 4,678,325.10 = 1,323,793.80 : x
  2. Step 2: Convert to fraction form
    3,121,216.20/4,678,325.10 = 1,323,793.80/x
  3. Step 3: Cross multiply
    3,121,216.20x = 4,678,325.10 × 1,323,793.80
  4. Step 4: Simplify right side
    3,121,216.20x = 6,193,137,761,764.38
  5. Step 5: Solve for x
    x = 6,193,137,761,764.38/3,121,216.20
  6. Step 6: Final answer
    x = 1,984,206.59

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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.