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Finding the Fourth Proportional to 402,992.09, 604,466.27 and 122,487.47

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Solution

The fourth proportional to 402,992.09, 604,466.27 and 122,487.47 is: 183,724.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,992.09 : 604,466.27 = 122,487.47 : x
  2. Step 2: Convert to fraction form
    402,992.09/604,466.27 = 122,487.47/x
  3. Step 3: Cross multiply
    402,992.09x = 604,466.27 × 122,487.47
  4. Step 4: Simplify right side
    402,992.09x = 74,039,540,477.87
  5. Step 5: Solve for x
    x = 74,039,540,477.87/402,992.09
  6. Step 6: Final answer
    x = 183,724.55

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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.