Home / 2,118,399.28-2,922,719.16-1,314,049.84

Finding the Fourth Proportional to 2,118,399.28, 2,922,719.16 and 1,314,049.84

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Solution

The fourth proportional to 2,118,399.28, 2,922,719.16 and 1,314,049.84 is: 1,812,972.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118,399.28 : 2,922,719.16 = 1,314,049.84 : x
  2. Step 2: Convert to fraction form
    2,118,399.28/2,922,719.16 = 1,314,049.84/x
  3. Step 3: Cross multiply
    2,118,399.28x = 2,922,719.16 × 1,314,049.84
  4. Step 4: Simplify right side
    2,118,399.28x = 3,840,598,644,562.94
  5. Step 5: Solve for x
    x = 3,840,598,644,562.94/2,118,399.28
  6. Step 6: Final answer
    x = 1,812,972.03

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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.