Home / 729,847.72-1,007,180.34-407,563.48

Finding the Fourth Proportional to 729,847.72, 1,007,180.34 and 407,563.48

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Solution

The fourth proportional to 729,847.72, 1,007,180.34 and 407,563.48 is: 562,432.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,847.72 : 1,007,180.34 = 407,563.48 : x
  2. Step 2: Convert to fraction form
    729,847.72/1,007,180.34 = 407,563.48/x
  3. Step 3: Cross multiply
    729,847.72x = 1,007,180.34 × 407,563.48
  4. Step 4: Simplify right side
    729,847.72x = 410,489,924,357.98
  5. Step 5: Solve for x
    x = 410,489,924,357.98/729,847.72
  6. Step 6: Final answer
    x = 562,432.29

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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.