Home / 858,300.60-1,286,529.30-325,615.80

Finding the Fourth Proportional to 858,300.60, 1,286,529.30 and 325,615.80

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Solution

The fourth proportional to 858,300.60, 1,286,529.30 and 325,615.80 is: 488,074.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,300.60 : 1,286,529.30 = 325,615.80 : x
  2. Step 2: Convert to fraction form
    858,300.60/1,286,529.30 = 325,615.80/x
  3. Step 3: Cross multiply
    858,300.60x = 1,286,529.30 × 325,615.80
  4. Step 4: Simplify right side
    858,300.60x = 418,914,267,242.94
  5. Step 5: Solve for x
    x = 418,914,267,242.94/858,300.60
  6. Step 6: Final answer
    x = 488,074.07

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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.