Home / 1,289,261.20-1,933,211.40-436,039.60

Finding the Fourth Proportional to 1,289,261.20, 1,933,211.40 and 436,039.60

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Solution

The fourth proportional to 1,289,261.20, 1,933,211.40 and 436,039.60 is: 653,829.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,261.20 : 1,933,211.40 = 436,039.60 : x
  2. Step 2: Convert to fraction form
    1,289,261.20/1,933,211.40 = 436,039.60/x
  3. Step 3: Cross multiply
    1,289,261.20x = 1,933,211.40 × 436,039.60
  4. Step 4: Simplify right side
    1,289,261.20x = 842,956,725,571.44
  5. Step 5: Solve for x
    x = 842,956,725,571.44/1,289,261.20
  6. Step 6: Final answer
    x = 653,829.28

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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.