Home / 461,719.80-692,579.70-285,348.60

Finding the Fourth Proportional to 461,719.80, 692,579.70 and 285,348.60

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Solution

The fourth proportional to 461,719.80, 692,579.70 and 285,348.60 is: 428,022.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,719.80 : 692,579.70 = 285,348.60 : x
  2. Step 2: Convert to fraction form
    461,719.80/692,579.70 = 285,348.60/x
  3. Step 3: Cross multiply
    461,719.80x = 692,579.70 × 285,348.60
  4. Step 4: Simplify right side
    461,719.80x = 197,626,647,783.42
  5. Step 5: Solve for x
    x = 197,626,647,783.42/461,719.80
  6. Step 6: Final answer
    x = 428,022.90

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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.