Home / 388,604.45-582,927.48-122,385.70

Finding the Fourth Proportional to 388,604.45, 582,927.48 and 122,385.70

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Solution

The fourth proportional to 388,604.45, 582,927.48 and 122,385.70 is: 183,585.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,604.45 : 582,927.48 = 122,385.70 : x
  2. Step 2: Convert to fraction form
    388,604.45/582,927.48 = 122,385.70/x
  3. Step 3: Cross multiply
    388,604.45x = 582,927.48 × 122,385.70
  4. Step 4: Simplify right side
    388,604.45x = 71,341,986,231.72
  5. Step 5: Solve for x
    x = 71,341,986,231.72/388,604.45
  6. Step 6: Final answer
    x = 183,585.10

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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.