Home / 780,357.74-1,170,630.35-274,814.22

Finding the Fourth Proportional to 780,357.74, 1,170,630.35 and 274,814.22

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Solution

The fourth proportional to 780,357.74, 1,170,630.35 and 274,814.22 is: 412,254.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,357.74 : 1,170,630.35 = 274,814.22 : x
  2. Step 2: Convert to fraction form
    780,357.74/1,170,630.35 = 274,814.22/x
  3. Step 3: Cross multiply
    780,357.74x = 1,170,630.35 × 274,814.22
  4. Step 4: Simplify right side
    780,357.74x = 321,705,865,169.51
  5. Step 5: Solve for x
    x = 321,705,865,169.51/780,357.74
  6. Step 6: Final answer
    x = 412,254.34

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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.