Home / 481,277.64-663,872.58-309,137.66

Finding the Fourth Proportional to 481,277.64, 663,872.58 and 309,137.66

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Solution

The fourth proportional to 481,277.64, 663,872.58 and 309,137.66 is: 426,423.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,277.64 : 663,872.58 = 309,137.66 : x
  2. Step 2: Convert to fraction form
    481,277.64/663,872.58 = 309,137.66/x
  3. Step 3: Cross multiply
    481,277.64x = 663,872.58 × 309,137.66
  4. Step 4: Simplify right side
    481,277.64x = 205,228,012,600.00
  5. Step 5: Solve for x
    x = 205,228,012,600.00/481,277.64
  6. Step 6: Final answer
    x = 426,423.33

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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.