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Finding the Fourth Proportional to 655,881.89, 981,598.92 and 403,321.05

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Solution

The fourth proportional to 655,881.89, 981,598.92 and 403,321.05 is: 603,614.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,881.89 : 981,598.92 = 403,321.05 : x
  2. Step 2: Convert to fraction form
    655,881.89/981,598.92 = 403,321.05/x
  3. Step 3: Cross multiply
    655,881.89x = 981,598.92 × 403,321.05
  4. Step 4: Simplify right side
    655,881.89x = 395,899,507,093.27
  5. Step 5: Solve for x
    x = 395,899,507,093.27/655,881.89
  6. Step 6: Final answer
    x = 603,614.03

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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.