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Finding the Fourth Proportional to 483,386.87, 667,092.81 and 330,745.21

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Solution

The fourth proportional to 483,386.87, 667,092.81 and 330,745.21 is: 456,441.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,386.87 : 667,092.81 = 330,745.21 : x
  2. Step 2: Convert to fraction form
    483,386.87/667,092.81 = 330,745.21/x
  3. Step 3: Cross multiply
    483,386.87x = 667,092.81 × 330,745.21
  4. Step 4: Simplify right side
    483,386.87x = 220,637,751,105.50
  5. Step 5: Solve for x
    x = 220,637,751,105.50/483,386.87
  6. Step 6: Final answer
    x = 456,441.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.