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Finding the Fourth Proportional to 629,290.61, 868,413.21 and 342,804.54

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Solution

The fourth proportional to 629,290.61, 868,413.21 and 342,804.54 is: 473,066.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,290.61 : 868,413.21 = 342,804.54 : x
  2. Step 2: Convert to fraction form
    629,290.61/868,413.21 = 342,804.54/x
  3. Step 3: Cross multiply
    629,290.61x = 868,413.21 × 342,804.54
  4. Step 4: Simplify right side
    629,290.61x = 297,695,990,983.97
  5. Step 5: Solve for x
    x = 297,695,990,983.97/629,290.61
  6. Step 6: Final answer
    x = 473,066.00

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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.