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Finding the Fourth Proportional to 612,782.82, 845,580.97 and 354,608.52

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Solution

The fourth proportional to 612,782.82, 845,580.97 and 354,608.52 is: 489,325.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,782.82 : 845,580.97 = 354,608.52 : x
  2. Step 2: Convert to fraction form
    612,782.82/845,580.97 = 354,608.52/x
  3. Step 3: Cross multiply
    612,782.82x = 845,580.97 × 354,608.52
  4. Step 4: Simplify right side
    612,782.82x = 299,850,213,584.20
  5. Step 5: Solve for x
    x = 299,850,213,584.20/612,782.82
  6. Step 6: Final answer
    x = 489,325.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.