Home / 3,405,407.28-5,111,435.20-2,812,409.52

Finding the Fourth Proportional to 3,405,407.28, 5,111,435.20 and 2,812,409.52

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Solution

The fourth proportional to 3,405,407.28, 5,111,435.20 and 2,812,409.52 is: 4,221,359.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405,407.28 : 5,111,435.20 = 2,812,409.52 : x
  2. Step 2: Convert to fraction form
    3,405,407.28/5,111,435.20 = 2,812,409.52/x
  3. Step 3: Cross multiply
    3,405,407.28x = 5,111,435.20 × 2,812,409.52
  4. Step 4: Simplify right side
    3,405,407.28x = 14,375,449,017,343.11
  5. Step 5: Solve for x
    x = 14,375,449,017,343.11/3,405,407.28
  6. Step 6: Final answer
    x = 4,221,359.69

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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.