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Finding the Fourth Proportional to 807,809.43, 1,114,771.43 and 445,233.48

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Solution

The fourth proportional to 807,809.43, 1,114,771.43 and 445,233.48 is: 614,419.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,809.43 : 1,114,771.43 = 445,233.48 : x
  2. Step 2: Convert to fraction form
    807,809.43/1,114,771.43 = 445,233.48/x
  3. Step 3: Cross multiply
    807,809.43x = 1,114,771.43 × 445,233.48
  4. Step 4: Simplify right side
    807,809.43x = 496,333,565,413.86
  5. Step 5: Solve for x
    x = 496,333,565,413.86/807,809.43
  6. Step 6: Final answer
    x = 614,419.13

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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.