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Finding the Fourth Proportional to 548,850.89, 757,437.55 and 339,344.39

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Solution

The fourth proportional to 548,850.89, 757,437.55 and 339,344.39 is: 468,309.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,850.89 : 757,437.55 = 339,344.39 : x
  2. Step 2: Convert to fraction form
    548,850.89/757,437.55 = 339,344.39/x
  3. Step 3: Cross multiply
    548,850.89x = 757,437.55 × 339,344.39
  4. Step 4: Simplify right side
    548,850.89x = 257,032,184,413.08
  5. Step 5: Solve for x
    x = 257,032,184,413.08/548,850.89
  6. Step 6: Final answer
    x = 468,309.68

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1.5x scale

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.