Home / 3,405,915-5,108,872.50-1,385,258.22

Finding the Fourth Proportional to 3,405,915, 5,108,872.50 and 1,385,258.22

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Solution

The fourth proportional to 3,405,915, 5,108,872.50 and 1,385,258.22 is: 2,077,887.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405,915 : 5,108,872.50 = 1,385,258.22 : x
  2. Step 2: Convert to fraction form
    3,405,915/5,108,872.50 = 1,385,258.22/x
  3. Step 3: Cross multiply
    3,405,915x = 5,108,872.50 × 1,385,258.22
  4. Step 4: Simplify right side
    3,405,915x = 7,077,107,625,556.95
  5. Step 5: Solve for x
    x = 7,077,107,625,556.95/3,405,915
  6. Step 6: Final answer
    x = 2,077,887.33

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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.