Home / 792,140.80-1,188,211.20-477,212.80

Finding the Fourth Proportional to 792,140.80, 1,188,211.20 and 477,212.80

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Solution

The fourth proportional to 792,140.80, 1,188,211.20 and 477,212.80 is: 715,819.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,140.80 : 1,188,211.20 = 477,212.80 : x
  2. Step 2: Convert to fraction form
    792,140.80/1,188,211.20 = 477,212.80/x
  3. Step 3: Cross multiply
    792,140.80x = 1,188,211.20 × 477,212.80
  4. Step 4: Simplify right side
    792,140.80x = 567,029,593,743.36
  5. Step 5: Solve for x
    x = 567,029,593,743.36/792,140.80
  6. Step 6: Final answer
    x = 715,819.20

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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.