Home / 490,964.58-677,520.49-284,241.69

Finding the Fourth Proportional to 490,964.58, 677,520.49 and 284,241.69

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Solution

The fourth proportional to 490,964.58, 677,520.49 and 284,241.69 is: 392,247.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,964.58 : 677,520.49 = 284,241.69 : x
  2. Step 2: Convert to fraction form
    490,964.58/677,520.49 = 284,241.69/x
  3. Step 3: Cross multiply
    490,964.58x = 677,520.49 × 284,241.69
  4. Step 4: Simplify right side
    490,964.58x = 192,579,565,699.63
  5. Step 5: Solve for x
    x = 192,579,565,699.63/490,964.58
  6. Step 6: Final answer
    x = 392,247.37

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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.