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Finding the Fourth Proportional to 655,064.46, 981,022.05 and 373,728.78

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Solution

The fourth proportional to 655,064.46, 981,022.05 and 373,728.78 is: 559,694.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,064.46 : 981,022.05 = 373,728.78 : x
  2. Step 2: Convert to fraction form
    655,064.46/981,022.05 = 373,728.78/x
  3. Step 3: Cross multiply
    655,064.46x = 981,022.05 × 373,728.78
  4. Step 4: Simplify right side
    655,064.46x = 366,636,173,899.60
  5. Step 5: Solve for x
    x = 366,636,173,899.60/655,064.46
  6. Step 6: Final answer
    x = 559,694.80

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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.