Home / 3,118,836.40-4,678,910.70-1,320,794.35

Finding the Fourth Proportional to 3,118,836.40, 4,678,910.70 and 1,320,794.35

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Solution

The fourth proportional to 3,118,836.40, 4,678,910.70 and 1,320,794.35 is: 1,981,469.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118,836.40 : 4,678,910.70 = 1,320,794.35 : x
  2. Step 2: Convert to fraction form
    3,118,836.40/4,678,910.70 = 1,320,794.35/x
  3. Step 3: Cross multiply
    3,118,836.40x = 4,678,910.70 × 1,320,794.35
  4. Step 4: Simplify right side
    3,118,836.40x = 6,179,878,816,714.55
  5. Step 5: Solve for x
    x = 6,179,878,816,714.55/3,118,836.40
  6. Step 6: Final answer
    x = 1,981,469.38

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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.