Home / 1,380,727.28-2,071,180.44-434,134.64

Finding the Fourth Proportional to 1,380,727.28, 2,071,180.44 and 434,134.64

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Solution

The fourth proportional to 1,380,727.28, 2,071,180.44 and 434,134.64 is: 651,230.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,727.28 : 2,071,180.44 = 434,134.64 : x
  2. Step 2: Convert to fraction form
    1,380,727.28/2,071,180.44 = 434,134.64/x
  3. Step 3: Cross multiply
    1,380,727.28x = 2,071,180.44 × 434,134.64
  4. Step 4: Simplify right side
    1,380,727.28x = 899,171,174,694.44
  5. Step 5: Solve for x
    x = 899,171,174,694.44/1,380,727.28
  6. Step 6: Final answer
    x = 651,230.11

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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.