Home / 780,354.80-1,170,626.00-274,811.30

Finding the Fourth Proportional to 780,354.80, 1,170,626.00 and 274,811.30

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Solution

The fourth proportional to 780,354.80, 1,170,626.00 and 274,811.30 is: 412,249.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,354.80 : 1,170,626.00 = 274,811.30 : x
  2. Step 2: Convert to fraction form
    780,354.80/1,170,626.00 = 274,811.30/x
  3. Step 3: Cross multiply
    780,354.80x = 1,170,626.00 × 274,811.30
  4. Step 4: Simplify right side
    780,354.80x = 321,701,250,036.46
  5. Step 5: Solve for x
    x = 321,701,250,036.46/780,354.80
  6. Step 6: Final answer
    x = 412,249.98

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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.