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Finding the Fourth Proportional to 526,808.25, 726,727.41 and 320,021.67

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Solution

The fourth proportional to 526,808.25, 726,727.41 and 320,021.67 is: 441,467.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,808.25 : 726,727.41 = 320,021.67 : x
  2. Step 2: Convert to fraction form
    526,808.25/726,727.41 = 320,021.67/x
  3. Step 3: Cross multiply
    526,808.25x = 726,727.41 × 320,021.67
  4. Step 4: Simplify right side
    526,808.25x = 232,568,519,382.98
  5. Step 5: Solve for x
    x = 232,568,519,382.98/526,808.25
  6. Step 6: Final answer
    x = 441,467.12

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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.