Home / 643,950.10-965,003.55-446,727.70

Finding the Fourth Proportional to 643,950.10, 965,003.55 and 446,727.70

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Solution

The fourth proportional to 643,950.10, 965,003.55 and 446,727.70 is: 669,452.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,950.10 : 965,003.55 = 446,727.70 : x
  2. Step 2: Convert to fraction form
    643,950.10/965,003.55 = 446,727.70/x
  3. Step 3: Cross multiply
    643,950.10x = 965,003.55 × 446,727.70
  4. Step 4: Simplify right side
    643,950.10x = 431,093,816,383.34
  5. Step 5: Solve for x
    x = 431,093,816,383.34/643,950.10
  6. Step 6: Final answer
    x = 669,452.21

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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.