Home / 481,284.20-663,690.47-320,146.04

Finding the Fourth Proportional to 481,284.20, 663,690.47 and 320,146.04

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Solution

The fourth proportional to 481,284.20, 663,690.47 and 320,146.04 is: 441,481.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,284.20 : 663,690.47 = 320,146.04 : x
  2. Step 2: Convert to fraction form
    481,284.20/663,690.47 = 320,146.04/x
  3. Step 3: Cross multiply
    481,284.20x = 663,690.47 × 320,146.04
  4. Step 4: Simplify right side
    481,284.20x = 212,477,875,814.74
  5. Step 5: Solve for x
    x = 212,477,875,814.74/481,284.20
  6. Step 6: Final answer
    x = 441,481.09

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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.