Home / 1,315,571.70-1,973,357.61-318,299.70

Finding the Fourth Proportional to 1,315,571.70, 1,973,357.61 and 318,299.70

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Solution

The fourth proportional to 1,315,571.70, 1,973,357.61 and 318,299.70 is: 477,449.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,571.70 : 1,973,357.61 = 318,299.70 : x
  2. Step 2: Convert to fraction form
    1,315,571.70/1,973,357.61 = 318,299.70/x
  3. Step 3: Cross multiply
    1,315,571.70x = 1,973,357.61 × 318,299.70
  4. Step 4: Simplify right side
    1,315,571.70x = 628,119,135,255.72
  5. Step 5: Solve for x
    x = 628,119,135,255.72/1,315,571.70
  6. Step 6: Final answer
    x = 477,449.56

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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.