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Finding the Fourth Proportional to 622,873.60, 932,342.10 and 489,029.20

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Solution

The fourth proportional to 622,873.60, 932,342.10 and 489,029.20 is: 731,998.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,873.60 : 932,342.10 = 489,029.20 : x
  2. Step 2: Convert to fraction form
    622,873.60/932,342.10 = 489,029.20/x
  3. Step 3: Cross multiply
    622,873.60x = 932,342.10 × 489,029.20
  4. Step 4: Simplify right side
    622,873.60x = 455,942,511,289.32
  5. Step 5: Solve for x
    x = 455,942,511,289.32/622,873.60
  6. Step 6: Final answer
    x = 731,998.45

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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.