Home / 3,412,385.60-5,120,344.80-1,392,110.40

Finding the Fourth Proportional to 3,412,385.60, 5,120,344.80 and 1,392,110.40

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Solution

The fourth proportional to 3,412,385.60, 5,120,344.80 and 1,392,110.40 is: 2,088,886.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,412,385.60 : 5,120,344.80 = 1,392,110.40 : x
  2. Step 2: Convert to fraction form
    3,412,385.60/5,120,344.80 = 1,392,110.40/x
  3. Step 3: Cross multiply
    3,412,385.60x = 5,120,344.80 × 1,392,110.40
  4. Step 4: Simplify right side
    3,412,385.60x = 7,128,085,247,665.92
  5. Step 5: Solve for x
    x = 7,128,085,247,665.92/3,412,385.60
  6. Step 6: Final answer
    x = 2,088,886.22

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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.