Home / 4,309,915.20-6,464,872.80-3,945,998.40

Finding the Fourth Proportional to 4,309,915.20, 6,464,872.80 and 3,945,998.40

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Solution

The fourth proportional to 4,309,915.20, 6,464,872.80 and 3,945,998.40 is: 5,918,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,309,915.20 : 6,464,872.80 = 3,945,998.40 : x
  2. Step 2: Convert to fraction form
    4,309,915.20/6,464,872.80 = 3,945,998.40/x
  3. Step 3: Cross multiply
    4,309,915.20x = 6,464,872.80 × 3,945,998.40
  4. Step 4: Simplify right side
    4,309,915.20x = 25,510,377,725,003.52
  5. Step 5: Solve for x
    x = 25,510,377,725,003.52/4,309,915.20
  6. Step 6: Final answer
    x = 5,918,997.60

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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.