Home / 438,940.20-658,410.30-297,222.60

Finding the Fourth Proportional to 438,940.20, 658,410.30 and 297,222.60

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Solution

The fourth proportional to 438,940.20, 658,410.30 and 297,222.60 is: 445,833.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,940.20 : 658,410.30 = 297,222.60 : x
  2. Step 2: Convert to fraction form
    438,940.20/658,410.30 = 297,222.60/x
  3. Step 3: Cross multiply
    438,940.20x = 658,410.30 × 297,222.60
  4. Step 4: Simplify right side
    438,940.20x = 195,694,421,232.78
  5. Step 5: Solve for x
    x = 195,694,421,232.78/438,940.20
  6. Step 6: Final answer
    x = 445,833.90

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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.