Home / 326,346.86-489,878.30-259,309.85

Finding the Fourth Proportional to 326,346.86, 489,878.30 and 259,309.85

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Solution

The fourth proportional to 326,346.86, 489,878.30 and 259,309.85 is: 389,249.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,346.86 : 489,878.30 = 259,309.85 : x
  2. Step 2: Convert to fraction form
    326,346.86/489,878.30 = 259,309.85/x
  3. Step 3: Cross multiply
    326,346.86x = 489,878.30 × 259,309.85
  4. Step 4: Simplify right side
    326,346.86x = 127,030,264,745.31
  5. Step 5: Solve for x
    x = 127,030,264,745.31/326,346.86
  6. Step 6: Final answer
    x = 389,249.23

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1.5x scale

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.