Home / 823,464.88-1,234,340.94-318,372.78

Finding the Fourth Proportional to 823,464.88, 1,234,340.94 and 318,372.78

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Solution

The fourth proportional to 823,464.88, 1,234,340.94 and 318,372.78 is: 477,228.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,464.88 : 1,234,340.94 = 318,372.78 : x
  2. Step 2: Convert to fraction form
    823,464.88/1,234,340.94 = 318,372.78/x
  3. Step 3: Cross multiply
    823,464.88x = 1,234,340.94 × 318,372.78
  4. Step 4: Simplify right side
    823,464.88x = 392,980,556,535.61
  5. Step 5: Solve for x
    x = 392,980,556,535.61/823,464.88
  6. Step 6: Final answer
    x = 477,228.07

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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.