Home / 780,076.03-1,076,499.57-435,912.84

Finding the Fourth Proportional to 780,076.03, 1,076,499.57 and 435,912.84

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Solution

The fourth proportional to 780,076.03, 1,076,499.57 and 435,912.84 is: 601,556.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,076.03 : 1,076,499.57 = 435,912.84 : x
  2. Step 2: Convert to fraction form
    780,076.03/1,076,499.57 = 435,912.84/x
  3. Step 3: Cross multiply
    780,076.03x = 1,076,499.57 × 435,912.84
  4. Step 4: Simplify right side
    780,076.03x = 469,259,984,817.48
  5. Step 5: Solve for x
    x = 469,259,984,817.48/780,076.03
  6. Step 6: Final answer
    x = 601,556.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.