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Finding the Fourth Proportional to 606,860.70, 910,400.40 and 251,910.60

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Solution

The fourth proportional to 606,860.70, 910,400.40 and 251,910.60 is: 377,911.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,860.70 : 910,400.40 = 251,910.60 : x
  2. Step 2: Convert to fraction form
    606,860.70/910,400.40 = 251,910.60/x
  3. Step 3: Cross multiply
    606,860.70x = 910,400.40 × 251,910.60
  4. Step 4: Simplify right side
    606,860.70x = 229,339,511,004.24
  5. Step 5: Solve for x
    x = 229,339,511,004.24/606,860.70
  6. Step 6: Final answer
    x = 377,911.29

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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.