Home / 3,108,840.80-4,663,917.30-979,140.20

Finding the Fourth Proportional to 3,108,840.80, 4,663,917.30 and 979,140.20

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Solution

The fourth proportional to 3,108,840.80, 4,663,917.30 and 979,140.20 is: 1,468,916.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108,840.80 : 4,663,917.30 = 979,140.20 : x
  2. Step 2: Convert to fraction form
    3,108,840.80/4,663,917.30 = 979,140.20/x
  3. Step 3: Cross multiply
    3,108,840.80x = 4,663,917.30 × 979,140.20
  4. Step 4: Simplify right side
    3,108,840.80x = 4,566,628,917,905.46
  5. Step 5: Solve for x
    x = 4,566,628,917,905.46/3,108,840.80
  6. Step 6: Final answer
    x = 1,468,916.94

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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.