Home / 858,172.60-1,286,870.10-325,516.60

Finding the Fourth Proportional to 858,172.60, 1,286,870.10 and 325,516.60

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Solution

The fourth proportional to 858,172.60, 1,286,870.10 and 325,516.60 is: 488,127.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,172.60 : 1,286,870.10 = 325,516.60 : x
  2. Step 2: Convert to fraction form
    858,172.60/1,286,870.10 = 325,516.60/x
  3. Step 3: Cross multiply
    858,172.60x = 1,286,870.10 × 325,516.60
  4. Step 4: Simplify right side
    858,172.60x = 418,897,579,593.66
  5. Step 5: Solve for x
    x = 418,897,579,593.66/858,172.60
  6. Step 6: Final answer
    x = 488,127.42

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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.