Home / 1,412,906.84-2,119,202.68-388,315.64

Finding the Fourth Proportional to 1,412,906.84, 2,119,202.68 and 388,315.64

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Solution

The fourth proportional to 1,412,906.84, 2,119,202.68 and 388,315.64 is: 582,430.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,906.84 : 2,119,202.68 = 388,315.64 : x
  2. Step 2: Convert to fraction form
    1,412,906.84/2,119,202.68 = 388,315.64/x
  3. Step 3: Cross multiply
    1,412,906.84x = 2,119,202.68 × 388,315.64
  4. Step 4: Simplify right side
    1,412,906.84x = 822,919,544,973.92
  5. Step 5: Solve for x
    x = 822,919,544,973.92/1,412,906.84
  6. Step 6: Final answer
    x = 582,430.15

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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.