Home / 858,136.60-1,286,621.70-325,577.80

Finding the Fourth Proportional to 858,136.60, 1,286,621.70 and 325,577.80

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Solution

The fourth proportional to 858,136.60, 1,286,621.70 and 325,577.80 is: 488,145.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,136.60 : 1,286,621.70 = 325,577.80 : x
  2. Step 2: Convert to fraction form
    858,136.60/1,286,621.70 = 325,577.80/x
  3. Step 3: Cross multiply
    858,136.60x = 1,286,621.70 × 325,577.80
  4. Step 4: Simplify right side
    858,136.60x = 418,895,462,518.26
  5. Step 5: Solve for x
    x = 418,895,462,518.26/858,136.60
  6. Step 6: Final answer
    x = 488,145.43

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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.