Home / 492,087.20-738,092.40-192,509.60

Finding the Fourth Proportional to 492,087.20, 738,092.40 and 192,509.60

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Solution

The fourth proportional to 492,087.20, 738,092.40 and 192,509.60 is: 288,749.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,087.20 : 738,092.40 = 192,509.60 : x
  2. Step 2: Convert to fraction form
    492,087.20/738,092.40 = 192,509.60/x
  3. Step 3: Cross multiply
    492,087.20x = 738,092.40 × 192,509.60
  4. Step 4: Simplify right side
    492,087.20x = 142,089,872,687.04
  5. Step 5: Solve for x
    x = 142,089,872,687.04/492,087.20
  6. Step 6: Final answer
    x = 288,749.38

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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.