Home / 869,118.20-1,303,628.70-270,074.60

Finding the Fourth Proportional to 869,118.20, 1,303,628.70 and 270,074.60

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Solution

The fourth proportional to 869,118.20, 1,303,628.70 and 270,074.60 is: 405,096.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,118.20 : 1,303,628.70 = 270,074.60 : x
  2. Step 2: Convert to fraction form
    869,118.20/1,303,628.70 = 270,074.60/x
  3. Step 3: Cross multiply
    869,118.20x = 1,303,628.70 × 270,074.60
  4. Step 4: Simplify right side
    869,118.20x = 352,076,999,701.02
  5. Step 5: Solve for x
    x = 352,076,999,701.02/869,118.20
  6. Step 6: Final answer
    x = 405,096.80

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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.