Home / 326,704.32-489,929.58-126,998.28

Finding the Fourth Proportional to 326,704.32, 489,929.58 and 126,998.28

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Solution

The fourth proportional to 326,704.32, 489,929.58 and 126,998.28 is: 190,448.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,704.32 : 489,929.58 = 126,998.28 : x
  2. Step 2: Convert to fraction form
    326,704.32/489,929.58 = 126,998.28/x
  3. Step 3: Cross multiply
    326,704.32x = 489,929.58 × 126,998.28
  4. Step 4: Simplify right side
    326,704.32x = 62,220,213,981.12
  5. Step 5: Solve for x
    x = 62,220,213,981.12/326,704.32
  6. Step 6: Final answer
    x = 190,448.09

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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.