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Finding the Fourth Proportional to 617,898, 852,624.36 and 345,944.56

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Solution

The fourth proportional to 617,898, 852,624.36 and 345,944.56 is: 477,361.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,898 : 852,624.36 = 345,944.56 : x
  2. Step 2: Convert to fraction form
    617,898/852,624.36 = 345,944.56/x
  3. Step 3: Cross multiply
    617,898x = 852,624.36 × 345,944.56
  4. Step 4: Simplify right side
    617,898x = 294,960,759,065.48
  5. Step 5: Solve for x
    x = 294,960,759,065.48/617,898
  6. Step 6: Final answer
    x = 477,361.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.