Home / 872,422.21-1,308,633.62-273,429.84

Finding the Fourth Proportional to 872,422.21, 1,308,633.62 and 273,429.84

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Solution

The fourth proportional to 872,422.21, 1,308,633.62 and 273,429.84 is: 410,144.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,422.21 : 1,308,633.62 = 273,429.84 : x
  2. Step 2: Convert to fraction form
    872,422.21/1,308,633.62 = 273,429.84/x
  3. Step 3: Cross multiply
    872,422.21x = 1,308,633.62 × 273,429.84
  4. Step 4: Simplify right side
    872,422.21x = 357,819,479,968.07
  5. Step 5: Solve for x
    x = 357,819,479,968.07/872,422.21
  6. Step 6: Final answer
    x = 410,144.86

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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.