Home / 1,290,669.99-1,936,008.62-392,119.17

Finding the Fourth Proportional to 1,290,669.99, 1,936,008.62 and 392,119.17

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Solution

The fourth proportional to 1,290,669.99, 1,936,008.62 and 392,119.17 is: 588,179.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,669.99 : 1,936,008.62 = 392,119.17 : x
  2. Step 2: Convert to fraction form
    1,290,669.99/1,936,008.62 = 392,119.17/x
  3. Step 3: Cross multiply
    1,290,669.99x = 1,936,008.62 × 392,119.17
  4. Step 4: Simplify right side
    1,290,669.99x = 759,146,093,187.25
  5. Step 5: Solve for x
    x = 759,146,093,187.25/1,290,669.99
  6. Step 6: Final answer
    x = 588,179.86

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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.