Home / 434,179.85-598,869.05-305,391.47

Finding the Fourth Proportional to 434,179.85, 598,869.05 and 305,391.47

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Solution

The fourth proportional to 434,179.85, 598,869.05 and 305,391.47 is: 421,229.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,179.85 : 598,869.05 = 305,391.47 : x
  2. Step 2: Convert to fraction form
    434,179.85/598,869.05 = 305,391.47/x
  3. Step 3: Cross multiply
    434,179.85x = 598,869.05 × 305,391.47
  4. Step 4: Simplify right side
    434,179.85x = 182,889,494,995.70
  5. Step 5: Solve for x
    x = 182,889,494,995.70/434,179.85
  6. Step 6: Final answer
    x = 421,229.81

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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.