Home / 388,621.83-582,953.64-122,403.18

Finding the Fourth Proportional to 388,621.83, 582,953.64 and 122,403.18

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Solution

The fourth proportional to 388,621.83, 582,953.64 and 122,403.18 is: 183,611.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,621.83 : 582,953.64 = 122,403.18 : x
  2. Step 2: Convert to fraction form
    388,621.83/582,953.64 = 122,403.18/x
  3. Step 3: Cross multiply
    388,621.83x = 582,953.64 × 122,403.18
  4. Step 4: Simplify right side
    388,621.83x = 71,355,379,328.58
  5. Step 5: Solve for x
    x = 71,355,379,328.58/388,621.83
  6. Step 6: Final answer
    x = 183,611.35

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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.