Home / 780,532.19-1,170,876.20-211,922.43

Finding the Fourth Proportional to 780,532.19, 1,170,876.20 and 211,922.43

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Solution

The fourth proportional to 780,532.19, 1,170,876.20 and 211,922.43 is: 317,904.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,532.19 : 1,170,876.20 = 211,922.43 : x
  2. Step 2: Convert to fraction form
    780,532.19/1,170,876.20 = 211,922.43/x
  3. Step 3: Cross multiply
    780,532.19x = 1,170,876.20 × 211,922.43
  4. Step 4: Simplify right side
    780,532.19x = 248,134,928,473.55
  5. Step 5: Solve for x
    x = 248,134,928,473.55/780,532.19
  6. Step 6: Final answer
    x = 317,904.80

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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.