Home / 858,174.10-1,286,872.35-325,518.10

Finding the Fourth Proportional to 858,174.10, 1,286,872.35 and 325,518.10

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Solution

The fourth proportional to 858,174.10, 1,286,872.35 and 325,518.10 is: 488,129.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,174.10 : 1,286,872.35 = 325,518.10 : x
  2. Step 2: Convert to fraction form
    858,174.10/1,286,872.35 = 325,518.10/x
  3. Step 3: Cross multiply
    858,174.10x = 1,286,872.35 × 325,518.10
  4. Step 4: Simplify right side
    858,174.10x = 418,900,242,314.54
  5. Step 5: Solve for x
    x = 418,900,242,314.54/858,174.10
  6. Step 6: Final answer
    x = 488,129.67

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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.