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Finding the Fourth Proportional to 655,981.70, 984,110.63 and 371,808.41

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Solution

The fourth proportional to 655,981.70, 984,110.63 and 371,808.41 is: 557,790.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,981.70 : 984,110.63 = 371,808.41 : x
  2. Step 2: Convert to fraction form
    655,981.70/984,110.63 = 371,808.41/x
  3. Step 3: Cross multiply
    655,981.70x = 984,110.63 × 371,808.41
  4. Step 4: Simplify right side
    655,981.70x = 365,900,601,824.80
  5. Step 5: Solve for x
    x = 365,900,601,824.80/655,981.70
  6. Step 6: Final answer
    x = 557,790.87

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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.