Home / 388,651.56-582,921.96-122,405.16

Finding the Fourth Proportional to 388,651.56, 582,921.96 and 122,405.16

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Solution

The fourth proportional to 388,651.56, 582,921.96 and 122,405.16 is: 183,590.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,651.56 : 582,921.96 = 122,405.16 : x
  2. Step 2: Convert to fraction form
    388,651.56/582,921.96 = 122,405.16/x
  3. Step 3: Cross multiply
    388,651.56x = 582,921.96 × 122,405.16
  4. Step 4: Simplify right side
    388,651.56x = 71,352,655,781.31
  5. Step 5: Solve for x
    x = 71,352,655,781.31/388,651.56
  6. Step 6: Final answer
    x = 183,590.30

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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.