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Finding the Fourth Proportional to 626,413.12, 864,452.43 and 339,933.13

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Solution

The fourth proportional to 626,413.12, 864,452.43 and 339,933.13 is: 469,108.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,413.12 : 864,452.43 = 339,933.13 : x
  2. Step 2: Convert to fraction form
    626,413.12/864,452.43 = 339,933.13/x
  3. Step 3: Cross multiply
    626,413.12x = 864,452.43 × 339,933.13
  4. Step 4: Simplify right side
    626,413.12x = 293,856,018,104.88
  5. Step 5: Solve for x
    x = 293,856,018,104.88/626,413.12
  6. Step 6: Final answer
    x = 469,108.98

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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.