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Finding the Fourth Proportional to 622,906.60, 932,391.60 and 489,062.20

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Solution

The fourth proportional to 622,906.60, 932,391.60 and 489,062.20 is: 732,047.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,906.60 : 932,391.60 = 489,062.20 : x
  2. Step 2: Convert to fraction form
    622,906.60/932,391.60 = 489,062.20/x
  3. Step 3: Cross multiply
    622,906.60x = 932,391.60 × 489,062.20
  4. Step 4: Simplify right side
    622,906.60x = 455,997,487,157.52
  5. Step 5: Solve for x
    x = 455,997,487,157.52/622,906.60
  6. Step 6: Final answer
    x = 732,047.93

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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.