Home / 780,556.98-1,170,835.44-219,591.48

Finding the Fourth Proportional to 780,556.98, 1,170,835.44 and 219,591.48

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Solution

The fourth proportional to 780,556.98, 1,170,835.44 and 219,591.48 is: 329,387.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,556.98 : 1,170,835.44 = 219,591.48 : x
  2. Step 2: Convert to fraction form
    780,556.98/1,170,835.44 = 219,591.48/x
  3. Step 3: Cross multiply
    780,556.98x = 1,170,835.44 × 219,591.48
  4. Step 4: Simplify right side
    780,556.98x = 257,105,487,106.05
  5. Step 5: Solve for x
    x = 257,105,487,106.05/780,556.98
  6. Step 6: Final answer
    x = 329,387.21

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1.5x scale

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.