Home / 558,287.14-770,439.90-303,640.18

Finding the Fourth Proportional to 558,287.14, 770,439.90 and 303,640.18

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Solution

The fourth proportional to 558,287.14, 770,439.90 and 303,640.18 is: 419,025.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,287.14 : 770,439.90 = 303,640.18 : x
  2. Step 2: Convert to fraction form
    558,287.14/770,439.90 = 303,640.18/x
  3. Step 3: Cross multiply
    558,287.14x = 770,439.90 × 303,640.18
  4. Step 4: Simplify right side
    558,287.14x = 233,936,509,915.18
  5. Step 5: Solve for x
    x = 233,936,509,915.18/558,287.14
  6. Step 6: Final answer
    x = 419,025.43

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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.