Home / 388,606.14-582,930.02-122,387.39

Finding the Fourth Proportional to 388,606.14, 582,930.02 and 122,387.39

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Solution

The fourth proportional to 388,606.14, 582,930.02 and 122,387.39 is: 183,587.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,606.14 : 582,930.02 = 122,387.39 : x
  2. Step 2: Convert to fraction form
    388,606.14/582,930.02 = 122,387.39/x
  3. Step 3: Cross multiply
    388,606.14x = 582,930.02 × 122,387.39
  4. Step 4: Simplify right side
    388,606.14x = 71,343,280,173.86
  5. Step 5: Solve for x
    x = 71,343,280,173.86/388,606.14
  6. Step 6: Final answer
    x = 183,587.63

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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.