Home / 2,178,671.40-3,006,523.32-1,211,780.88

Finding the Fourth Proportional to 2,178,671.40, 3,006,523.32 and 1,211,780.88

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Solution

The fourth proportional to 2,178,671.40, 3,006,523.32 and 1,211,780.88 is: 1,672,233.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178,671.40 : 3,006,523.32 = 1,211,780.88 : x
  2. Step 2: Convert to fraction form
    2,178,671.40/3,006,523.32 = 1,211,780.88/x
  3. Step 3: Cross multiply
    2,178,671.40x = 3,006,523.32 × 1,211,780.88
  4. Step 4: Simplify right side
    2,178,671.40x = 3,643,247,474,450.12
  5. Step 5: Solve for x
    x = 3,643,247,474,450.12/2,178,671.40
  6. Step 6: Final answer
    x = 1,672,233.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.