Home / 388,651.90-582,922.46-122,405.50

Finding the Fourth Proportional to 388,651.90, 582,922.46 and 122,405.50

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Solution

The fourth proportional to 388,651.90, 582,922.46 and 122,405.50 is: 183,590.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,651.90 : 582,922.46 = 122,405.50 : x
  2. Step 2: Convert to fraction form
    388,651.90/582,922.46 = 122,405.50/x
  3. Step 3: Cross multiply
    388,651.90x = 582,922.46 × 122,405.50
  4. Step 4: Simplify right side
    388,651.90x = 71,352,915,177.53
  5. Step 5: Solve for x
    x = 71,352,915,177.53/388,651.90
  6. Step 6: Final answer
    x = 183,590.80

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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.