Home / 729,929.78-1,007,231.13-407,632.97

Finding the Fourth Proportional to 729,929.78, 1,007,231.13 and 407,632.97

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Solution

The fourth proportional to 729,929.78, 1,007,231.13 and 407,632.97 is: 562,493.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,929.78 : 1,007,231.13 = 407,632.97 : x
  2. Step 2: Convert to fraction form
    729,929.78/1,007,231.13 = 407,632.97/x
  3. Step 3: Cross multiply
    729,929.78x = 1,007,231.13 × 407,632.97
  4. Step 4: Simplify right side
    729,929.78x = 410,580,616,998.36
  5. Step 5: Solve for x
    x = 410,580,616,998.36/729,929.78
  6. Step 6: Final answer
    x = 562,493.31

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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.