Home / 438,930.37-658,395.55-123,387.27

Finding the Fourth Proportional to 438,930.37, 658,395.55 and 123,387.27

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Solution

The fourth proportional to 438,930.37, 658,395.55 and 123,387.27 is: 185,080.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,930.37 : 658,395.55 = 123,387.27 : x
  2. Step 2: Convert to fraction form
    438,930.37/658,395.55 = 123,387.27/x
  3. Step 3: Cross multiply
    438,930.37x = 658,395.55 × 123,387.27
  4. Step 4: Simplify right side
    438,930.37x = 81,237,632,908.63
  5. Step 5: Solve for x
    x = 81,237,632,908.63/438,930.37
  6. Step 6: Final answer
    x = 185,080.91

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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.