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Finding the Fourth Proportional to 3,299,982.12, 4,949,779.50 and 903,650.40

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Solution

The fourth proportional to 3,299,982.12, 4,949,779.50 and 903,650.40 is: 1,355,422.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,299,982.12 : 4,949,779.50 = 903,650.40 : x
  2. Step 2: Convert to fraction form
    3,299,982.12/4,949,779.50 = 903,650.40/x
  3. Step 3: Cross multiply
    3,299,982.12x = 4,949,779.50 × 903,650.40
  4. Step 4: Simplify right side
    3,299,982.12x = 4,472,870,225,086.80
  5. Step 5: Solve for x
    x = 4,472,870,225,086.80/3,299,982.12
  6. Step 6: Final answer
    x = 1,355,422.56

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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.