Home / 780,489.44-1,170,717.48-359,765.31

Finding the Fourth Proportional to 780,489.44, 1,170,717.48 and 359,765.31

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Solution

The fourth proportional to 780,489.44, 1,170,717.48 and 359,765.31 is: 539,640.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,489.44 : 1,170,717.48 = 359,765.31 : x
  2. Step 2: Convert to fraction form
    780,489.44/1,170,717.48 = 359,765.31/x
  3. Step 3: Cross multiply
    780,489.44x = 1,170,717.48 × 359,765.31
  4. Step 4: Simplify right side
    780,489.44x = 421,183,535,315.79
  5. Step 5: Solve for x
    x = 421,183,535,315.79/780,489.44
  6. Step 6: Final answer
    x = 539,640.28

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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.