Home / 494,413.79-682,272.08-279,558.35

Finding the Fourth Proportional to 494,413.79, 682,272.08 and 279,558.35

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Solution

The fourth proportional to 494,413.79, 682,272.08 and 279,558.35 is: 385,779.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,413.79 : 682,272.08 = 279,558.35 : x
  2. Step 2: Convert to fraction form
    494,413.79/682,272.08 = 279,558.35/x
  3. Step 3: Cross multiply
    494,413.79x = 682,272.08 × 279,558.35
  4. Step 4: Simplify right side
    494,413.79x = 190,734,856,935.87
  5. Step 5: Solve for x
    x = 190,734,856,935.87/494,413.79
  6. Step 6: Final answer
    x = 385,779.81

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Double scale
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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.