Home / 3,111,721.28-4,658,779.74-1,649,435.78

Finding the Fourth Proportional to 3,111,721.28, 4,658,779.74 and 1,649,435.78

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Solution

The fourth proportional to 3,111,721.28, 4,658,779.74 and 1,649,435.78 is: 2,469,487.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111,721.28 : 4,658,779.74 = 1,649,435.78 : x
  2. Step 2: Convert to fraction form
    3,111,721.28/4,658,779.74 = 1,649,435.78/x
  3. Step 3: Cross multiply
    3,111,721.28x = 4,658,779.74 × 1,649,435.78
  4. Step 4: Simplify right side
    3,111,721.28x = 7,684,357,994,295.10
  5. Step 5: Solve for x
    x = 7,684,357,994,295.10/3,111,721.28
  6. Step 6: Final answer
    x = 2,469,487.88

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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.