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Finding the Fourth Proportional to 891,858.75, 1,230,758.82 and 483,950.21

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Solution

The fourth proportional to 891,858.75, 1,230,758.82 and 483,950.21 is: 667,847.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,858.75 : 1,230,758.82 = 483,950.21 : x
  2. Step 2: Convert to fraction form
    891,858.75/1,230,758.82 = 483,950.21/x
  3. Step 3: Cross multiply
    891,858.75x = 1,230,758.82 × 483,950.21
  4. Step 4: Simplify right side
    891,858.75x = 595,625,983,244.56
  5. Step 5: Solve for x
    x = 595,625,983,244.56/891,858.75
  6. Step 6: Final answer
    x = 667,847.89

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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.