Home / 858,346.10-1,286,597.55-325,661.30

Finding the Fourth Proportional to 858,346.10, 1,286,597.55 and 325,661.30

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Solution

The fourth proportional to 858,346.10, 1,286,597.55 and 325,661.30 is: 488,142.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,346.10 : 1,286,597.55 = 325,661.30 : x
  2. Step 2: Convert to fraction form
    858,346.10/1,286,597.55 = 325,661.30/x
  3. Step 3: Cross multiply
    858,346.10x = 1,286,597.55 × 325,661.30
  4. Step 4: Simplify right side
    858,346.10x = 418,995,030,709.82
  5. Step 5: Solve for x
    x = 418,995,030,709.82/858,346.10
  6. Step 6: Final answer
    x = 488,142.29

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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.