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Finding the Fourth Proportional to 655,063.96, 981,021.30 and 373,728.28

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Solution

The fourth proportional to 655,063.96, 981,021.30 and 373,728.28 is: 559,694.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,063.96 : 981,021.30 = 373,728.28 : x
  2. Step 2: Convert to fraction form
    655,063.96/981,021.30 = 373,728.28/x
  3. Step 3: Cross multiply
    655,063.96x = 981,021.30 × 373,728.28
  4. Step 4: Simplify right side
    655,063.96x = 366,635,403,092.36
  5. Step 5: Solve for x
    x = 366,635,403,092.36/655,063.96
  6. Step 6: Final answer
    x = 559,694.05

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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.