Home / 439,546.40-659,427.60-123,999.20

Finding the Fourth Proportional to 439,546.40, 659,427.60 and 123,999.20

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Solution

The fourth proportional to 439,546.40, 659,427.60 and 123,999.20 is: 186,029.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,546.40 : 659,427.60 = 123,999.20 : x
  2. Step 2: Convert to fraction form
    439,546.40/659,427.60 = 123,999.20/x
  3. Step 3: Cross multiply
    439,546.40x = 659,427.60 × 123,999.20
  4. Step 4: Simplify right side
    439,546.40x = 81,768,494,857.92
  5. Step 5: Solve for x
    x = 81,768,494,857.92/439,546.40
  6. Step 6: Final answer
    x = 186,029.27

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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.