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Finding the Fourth Proportional to 489,261.36, 733,965 and 173,691.84

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Solution

The fourth proportional to 489,261.36, 733,965 and 173,691.84 is: 260,563.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,261.36 : 733,965 = 173,691.84 : x
  2. Step 2: Convert to fraction form
    489,261.36/733,965 = 173,691.84/x
  3. Step 3: Cross multiply
    489,261.36x = 733,965 × 173,691.84
  4. Step 4: Simplify right side
    489,261.36x = 127,483,731,345.60
  5. Step 5: Solve for x
    x = 127,483,731,345.60/489,261.36
  6. Step 6: Final answer
    x = 260,563.66

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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.