Home / 1,330,022.72-1,995,314.67-431,394.68

Finding the Fourth Proportional to 1,330,022.72, 1,995,314.67 and 431,394.68

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Solution

The fourth proportional to 1,330,022.72, 1,995,314.67 and 431,394.68 is: 647,183.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,022.72 : 1,995,314.67 = 431,394.68 : x
  2. Step 2: Convert to fraction form
    1,330,022.72/1,995,314.67 = 431,394.68/x
  3. Step 3: Cross multiply
    1,330,022.72x = 1,995,314.67 × 431,394.68
  4. Step 4: Simplify right side
    1,330,022.72x = 860,768,133,563.96
  5. Step 5: Solve for x
    x = 860,768,133,563.96/1,330,022.72
  6. Step 6: Final answer
    x = 647,183.03

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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.