Home / 438,621.73-657,955.79-123,103.24

Finding the Fourth Proportional to 438,621.73, 657,955.79 and 123,103.24

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Solution

The fourth proportional to 438,621.73, 657,955.79 and 123,103.24 is: 184,661.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,621.73 : 657,955.79 = 123,103.24 : x
  2. Step 2: Convert to fraction form
    438,621.73/657,955.79 = 123,103.24/x
  3. Step 3: Cross multiply
    438,621.73x = 657,955.79 × 123,103.24
  4. Step 4: Simplify right side
    438,621.73x = 80,996,488,188.63
  5. Step 5: Solve for x
    x = 80,996,488,188.63/438,621.73
  6. Step 6: Final answer
    x = 184,661.37

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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.