Home / 388,623.83-582,956.64-122,405.18

Finding the Fourth Proportional to 388,623.83, 582,956.64 and 122,405.18

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Solution

The fourth proportional to 388,623.83, 582,956.64 and 122,405.18 is: 183,614.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,623.83 : 582,956.64 = 122,405.18 : x
  2. Step 2: Convert to fraction form
    388,623.83/582,956.64 = 122,405.18/x
  3. Step 3: Cross multiply
    388,623.83x = 582,956.64 × 122,405.18
  4. Step 4: Simplify right side
    388,623.83x = 71,356,912,451.40
  5. Step 5: Solve for x
    x = 71,356,912,451.40/388,623.83
  6. Step 6: Final answer
    x = 183,614.35

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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.