Home / 1,328,453.20-1,992,679.80-879,680.80

Finding the Fourth Proportional to 1,328,453.20, 1,992,679.80 and 879,680.80

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Solution

The fourth proportional to 1,328,453.20, 1,992,679.80 and 879,680.80 is: 1,319,521.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,453.20 : 1,992,679.80 = 879,680.80 : x
  2. Step 2: Convert to fraction form
    1,328,453.20/1,992,679.80 = 879,680.80/x
  3. Step 3: Cross multiply
    1,328,453.20x = 1,992,679.80 × 879,680.80
  4. Step 4: Simplify right side
    1,328,453.20x = 1,752,922,160,607.84
  5. Step 5: Solve for x
    x = 1,752,922,160,607.84/1,328,453.20
  6. Step 6: Final answer
    x = 1,319,521.20

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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.