Home / 3,409,438.32-5,112,827.88-1,278,361.20

Finding the Fourth Proportional to 3,409,438.32, 5,112,827.88 and 1,278,361.20

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Solution

The fourth proportional to 3,409,438.32, 5,112,827.88 and 1,278,361.20 is: 1,917,043.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,409,438.32 : 5,112,827.88 = 1,278,361.20 : x
  2. Step 2: Convert to fraction form
    3,409,438.32/5,112,827.88 = 1,278,361.20/x
  3. Step 3: Cross multiply
    3,409,438.32x = 5,112,827.88 × 1,278,361.20
  4. Step 4: Simplify right side
    3,409,438.32x = 6,536,040,784,070.26
  5. Step 5: Solve for x
    x = 6,536,040,784,070.26/3,409,438.32
  6. Step 6: Final answer
    x = 1,917,043.27

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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.