Home / 729,930.78-1,007,232.51-407,633.97

Finding the Fourth Proportional to 729,930.78, 1,007,232.51 and 407,633.97

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Solution

The fourth proportional to 729,930.78, 1,007,232.51 and 407,633.97 is: 562,494.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,930.78 : 1,007,232.51 = 407,633.97 : x
  2. Step 2: Convert to fraction form
    729,930.78/1,007,232.51 = 407,633.97/x
  3. Step 3: Cross multiply
    729,930.78x = 1,007,232.51 × 407,633.97
  4. Step 4: Simplify right side
    729,930.78x = 410,582,186,764.37
  5. Step 5: Solve for x
    x = 410,582,186,764.37/729,930.78
  6. Step 6: Final answer
    x = 562,494.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.