Home / 780,299.86-1,170,449.79-219,334.36

Finding the Fourth Proportional to 780,299.86, 1,170,449.79 and 219,334.36

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Solution

The fourth proportional to 780,299.86, 1,170,449.79 and 219,334.36 is: 329,001.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,299.86 : 1,170,449.79 = 219,334.36 : x
  2. Step 2: Convert to fraction form
    780,299.86/1,170,449.79 = 219,334.36/x
  3. Step 3: Cross multiply
    780,299.86x = 1,170,449.79 × 219,334.36
  4. Step 4: Simplify right side
    780,299.86x = 256,719,854,664.63
  5. Step 5: Solve for x
    x = 256,719,854,664.63/780,299.86
  6. Step 6: Final answer
    x = 329,001.54

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Similar ratio
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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.