Home / 769,571.52-1,061,749.78-497,983.03

Finding the Fourth Proportional to 769,571.52, 1,061,749.78 and 497,983.03

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Solution

The fourth proportional to 769,571.52, 1,061,749.78 and 497,983.03 is: 687,049.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,571.52 : 1,061,749.78 = 497,983.03 : x
  2. Step 2: Convert to fraction form
    769,571.52/1,061,749.78 = 497,983.03/x
  3. Step 3: Cross multiply
    769,571.52x = 1,061,749.78 × 497,983.03
  4. Step 4: Simplify right side
    769,571.52x = 528,733,372,546.23
  5. Step 5: Solve for x
    x = 528,733,372,546.23/769,571.52
  6. Step 6: Final answer
    x = 687,049.04

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1.5x scale

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.