Home / 818,559.28-1,129,645.83-455,983.03

Finding the Fourth Proportional to 818,559.28, 1,129,645.83 and 455,983.03

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Solution

The fourth proportional to 818,559.28, 1,129,645.83 and 455,983.03 is: 629,275.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,559.28 : 1,129,645.83 = 455,983.03 : x
  2. Step 2: Convert to fraction form
    818,559.28/1,129,645.83 = 455,983.03/x
  3. Step 3: Cross multiply
    818,559.28x = 1,129,645.83 × 455,983.03
  4. Step 4: Simplify right side
    818,559.28x = 515,099,328,390.27
  5. Step 5: Solve for x
    x = 515,099,328,390.27/818,559.28
  6. Step 6: Final answer
    x = 629,275.53

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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.