Home / 1,330,179.89-1,995,469.09-431,322.89

Finding the Fourth Proportional to 1,330,179.89, 1,995,469.09 and 431,322.89

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Solution

The fourth proportional to 1,330,179.89, 1,995,469.09 and 431,322.89 is: 647,048.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,179.89 : 1,995,469.09 = 431,322.89 : x
  2. Step 2: Convert to fraction form
    1,330,179.89/1,995,469.09 = 431,322.89/x
  3. Step 3: Cross multiply
    1,330,179.89x = 1,995,469.09 × 431,322.89
  4. Step 4: Simplify right side
    1,330,179.89x = 860,691,483,748.82
  5. Step 5: Solve for x
    x = 860,691,483,748.82/1,330,179.89
  6. Step 6: Final answer
    x = 647,048.94

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Double scale
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1.5x scale

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.