Home / 1,284,373.90-1,926,949.56-485,900.20

Finding the Fourth Proportional to 1,284,373.90, 1,926,949.56 and 485,900.20

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Solution

The fourth proportional to 1,284,373.90, 1,926,949.56 and 485,900.20 is: 728,997.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,373.90 : 1,926,949.56 = 485,900.20 : x
  2. Step 2: Convert to fraction form
    1,284,373.90/1,926,949.56 = 485,900.20/x
  3. Step 3: Cross multiply
    1,284,373.90x = 1,926,949.56 × 485,900.20
  4. Step 4: Simplify right side
    1,284,373.90x = 936,305,176,593.91
  5. Step 5: Solve for x
    x = 936,305,176,593.91/1,284,373.90
  6. Step 6: Final answer
    x = 728,997.36

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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.