Home / 446,554.20-669,905.10-206,907.60

Finding the Fourth Proportional to 446,554.20, 669,905.10 and 206,907.60

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Solution

The fourth proportional to 446,554.20, 669,905.10 and 206,907.60 is: 310,395.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,554.20 : 669,905.10 = 206,907.60 : x
  2. Step 2: Convert to fraction form
    446,554.20/669,905.10 = 206,907.60/x
  3. Step 3: Cross multiply
    446,554.20x = 669,905.10 × 206,907.60
  4. Step 4: Simplify right side
    446,554.20x = 138,608,456,468.76
  5. Step 5: Solve for x
    x = 138,608,456,468.76/446,554.20
  6. Step 6: Final answer
    x = 310,395.59

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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.