Home / 403,721.84-605,678.52-123,221.36

Finding the Fourth Proportional to 403,721.84, 605,678.52 and 123,221.36

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Solution

The fourth proportional to 403,721.84, 605,678.52 and 123,221.36 is: 184,861.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,721.84 : 605,678.52 = 123,221.36 : x
  2. Step 2: Convert to fraction form
    403,721.84/605,678.52 = 123,221.36/x
  3. Step 3: Cross multiply
    403,721.84x = 605,678.52 × 123,221.36
  4. Step 4: Simplify right side
    403,721.84x = 74,632,530,957.19
  5. Step 5: Solve for x
    x = 74,632,530,957.19/403,721.84
  6. Step 6: Final answer
    x = 184,861.27

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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.