Home / 729,132.72-1,093,945.32-459,463.92

Finding the Fourth Proportional to 729,132.72, 1,093,945.32 and 459,463.92

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Solution

The fourth proportional to 729,132.72, 1,093,945.32 and 459,463.92 is: 689,351.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,132.72 : 1,093,945.32 = 459,463.92 : x
  2. Step 2: Convert to fraction form
    729,132.72/1,093,945.32 = 459,463.92/x
  3. Step 3: Cross multiply
    729,132.72x = 1,093,945.32 × 459,463.92
  4. Step 4: Simplify right side
    729,132.72x = 502,628,404,992.85
  5. Step 5: Solve for x
    x = 502,628,404,992.85/729,132.72
  6. Step 6: Final answer
    x = 689,351.05

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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.