Home / 818,653.80-1,228,709.70-481,272.60

Finding the Fourth Proportional to 818,653.80, 1,228,709.70 and 481,272.60

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Solution

The fourth proportional to 818,653.80, 1,228,709.70 and 481,272.60 is: 722,337.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,653.80 : 1,228,709.70 = 481,272.60 : x
  2. Step 2: Convert to fraction form
    818,653.80/1,228,709.70 = 481,272.60/x
  3. Step 3: Cross multiply
    818,653.80x = 1,228,709.70 × 481,272.60
  4. Step 4: Simplify right side
    818,653.80x = 591,344,311,964.22
  5. Step 5: Solve for x
    x = 591,344,311,964.22/818,653.80
  6. Step 6: Final answer
    x = 722,337.47

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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.