Home / 780,447.56-1,170,653.09-359,723.43

Finding the Fourth Proportional to 780,447.56, 1,170,653.09 and 359,723.43

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Solution

The fourth proportional to 780,447.56, 1,170,653.09 and 359,723.43 is: 539,576.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,447.56 : 1,170,653.09 = 359,723.43 : x
  2. Step 2: Convert to fraction form
    780,447.56/1,170,653.09 = 359,723.43/x
  3. Step 3: Cross multiply
    780,447.56x = 1,170,653.09 × 359,723.43
  4. Step 4: Simplify right side
    780,447.56x = 421,111,343,076.28
  5. Step 5: Solve for x
    x = 421,111,343,076.28/780,447.56
  6. Step 6: Final answer
    x = 539,576.73

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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.