Home / 326,416.22-489,627.06-89,771.88

Finding the Fourth Proportional to 326,416.22, 489,627.06 and 89,771.88

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Solution

The fourth proportional to 326,416.22, 489,627.06 and 89,771.88 is: 134,658.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,416.22 : 489,627.06 = 89,771.88 : x
  2. Step 2: Convert to fraction form
    326,416.22/489,627.06 = 89,771.88/x
  3. Step 3: Cross multiply
    326,416.22x = 489,627.06 × 89,771.88
  4. Step 4: Simplify right side
    326,416.22x = 43,954,741,675.07
  5. Step 5: Solve for x
    x = 43,954,741,675.07/326,416.22
  6. Step 6: Final answer
    x = 134,658.57

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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.