Home / 886,991.28-1,331,011.80-326,419.44

Finding the Fourth Proportional to 886,991.28, 1,331,011.80 and 326,419.44

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Solution

The fourth proportional to 886,991.28, 1,331,011.80 and 326,419.44 is: 489,822.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,991.28 : 1,331,011.80 = 326,419.44 : x
  2. Step 2: Convert to fraction form
    886,991.28/1,331,011.80 = 326,419.44/x
  3. Step 3: Cross multiply
    886,991.28x = 1,331,011.80 × 326,419.44
  4. Step 4: Simplify right side
    886,991.28x = 434,468,126,389.39
  5. Step 5: Solve for x
    x = 434,468,126,389.39/886,991.28
  6. Step 6: Final answer
    x = 489,822.32

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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.