Home / 3,409,154.32-5,112,402.20-1,278,076.88

Finding the Fourth Proportional to 3,409,154.32, 5,112,402.20 and 1,278,076.88

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Solution

The fourth proportional to 3,409,154.32, 5,112,402.20 and 1,278,076.88 is: 1,916,616.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,409,154.32 : 5,112,402.20 = 1,278,076.88 : x
  2. Step 2: Convert to fraction form
    3,409,154.32/5,112,402.20 = 1,278,076.88/x
  3. Step 3: Cross multiply
    3,409,154.32x = 5,112,402.20 × 1,278,076.88
  4. Step 4: Simplify right side
    3,409,154.32x = 6,534,043,053,081.14
  5. Step 5: Solve for x
    x = 6,534,043,053,081.14/3,409,154.32
  6. Step 6: Final answer
    x = 1,916,616.98

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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.