Home / 729,862.72-1,007,201.04-407,578.48

Finding the Fourth Proportional to 729,862.72, 1,007,201.04 and 407,578.48

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Solution

The fourth proportional to 729,862.72, 1,007,201.04 and 407,578.48 is: 562,452.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,862.72 : 1,007,201.04 = 407,578.48 : x
  2. Step 2: Convert to fraction form
    729,862.72/1,007,201.04 = 407,578.48/x
  3. Step 3: Cross multiply
    729,862.72x = 1,007,201.04 × 407,578.48
  4. Step 4: Simplify right side
    729,862.72x = 410,513,468,937.62
  5. Step 5: Solve for x
    x = 410,513,468,937.62/729,862.72
  6. Step 6: Final answer
    x = 562,452.99

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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.