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Finding the Fourth Proportional to 662,855.42, 994,413.09 and 263,421.74

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Solution

The fourth proportional to 662,855.42, 994,413.09 and 263,421.74 is: 395,184.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,855.42 : 994,413.09 = 263,421.74 : x
  2. Step 2: Convert to fraction form
    662,855.42/994,413.09 = 263,421.74/x
  3. Step 3: Cross multiply
    662,855.42x = 994,413.09 × 263,421.74
  4. Step 4: Simplify right side
    662,855.42x = 261,950,026,446.58
  5. Step 5: Solve for x
    x = 261,950,026,446.58/662,855.42
  6. Step 6: Final answer
    x = 395,184.26

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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.