Home / 656,906.10-985,687.20-372,814.80

Finding the Fourth Proportional to 656,906.10, 985,687.20 and 372,814.80

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Solution

The fourth proportional to 656,906.10, 985,687.20 and 372,814.80 is: 559,408.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,906.10 : 985,687.20 = 372,814.80 : x
  2. Step 2: Convert to fraction form
    656,906.10/985,687.20 = 372,814.80/x
  3. Step 3: Cross multiply
    656,906.10x = 985,687.20 × 372,814.80
  4. Step 4: Simplify right side
    656,906.10x = 367,478,776,330.56
  5. Step 5: Solve for x
    x = 367,478,776,330.56/656,906.10
  6. Step 6: Final answer
    x = 559,408.38

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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.