Home / 728,461.91-1,092,069.83-279,505.01

Finding the Fourth Proportional to 728,461.91, 1,092,069.83 and 279,505.01

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Solution

The fourth proportional to 728,461.91, 1,092,069.83 and 279,505.01 is: 419,018.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,461.91 : 1,092,069.83 = 279,505.01 : x
  2. Step 2: Convert to fraction form
    728,461.91/1,092,069.83 = 279,505.01/x
  3. Step 3: Cross multiply
    728,461.91x = 1,092,069.83 × 279,505.01
  4. Step 4: Simplify right side
    728,461.91x = 305,238,992,183.79
  5. Step 5: Solve for x
    x = 305,238,992,183.79/728,461.91
  6. Step 6: Final answer
    x = 419,018.46

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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.