Home / 3,432,912.30-5,149,368.45-1,921,257.90

Finding the Fourth Proportional to 3,432,912.30, 5,149,368.45 and 1,921,257.90

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Solution

The fourth proportional to 3,432,912.30, 5,149,368.45 and 1,921,257.90 is: 2,881,886.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,432,912.30 : 5,149,368.45 = 1,921,257.90 : x
  2. Step 2: Convert to fraction form
    3,432,912.30/5,149,368.45 = 1,921,257.90/x
  3. Step 3: Cross multiply
    3,432,912.30x = 5,149,368.45 × 1,921,257.90
  4. Step 4: Simplify right side
    3,432,912.30x = 9,893,264,814,573.25
  5. Step 5: Solve for x
    x = 9,893,264,814,573.25/3,432,912.30
  6. Step 6: Final answer
    x = 2,881,886.85

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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.