Home / 393,329.46-589,997.60-127,090

Finding the Fourth Proportional to 393,329.46, 589,997.60 and 127,090

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Solution

The fourth proportional to 393,329.46, 589,997.60 and 127,090 is: 190,636.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,329.46 : 589,997.60 = 127,090 : x
  2. Step 2: Convert to fraction form
    393,329.46/589,997.60 = 127,090/x
  3. Step 3: Cross multiply
    393,329.46x = 589,997.60 × 127,090
  4. Step 4: Simplify right side
    393,329.46x = 74,982,794,984
  5. Step 5: Solve for x
    x = 74,982,794,984/393,329.46
  6. Step 6: Final answer
    x = 190,636.10

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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.