Home / 823,451.94-1,234,321.55-318,359.82

Finding the Fourth Proportional to 823,451.94, 1,234,321.55 and 318,359.82

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Solution

The fourth proportional to 823,451.94, 1,234,321.55 and 318,359.82 is: 477,208.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,451.94 : 1,234,321.55 = 318,359.82 : x
  2. Step 2: Convert to fraction form
    823,451.94/1,234,321.55 = 318,359.82/x
  3. Step 3: Cross multiply
    823,451.94x = 1,234,321.55 × 318,359.82
  4. Step 4: Simplify right side
    823,451.94x = 392,958,384,888.32
  5. Step 5: Solve for x
    x = 392,958,384,888.32/823,451.94
  6. Step 6: Final answer
    x = 477,208.65

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1.5x scale

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.