Home / 1,621,683.72-2,237,986.67-1,076,880.15

Finding the Fourth Proportional to 1,621,683.72, 2,237,986.67 and 1,076,880.15

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Solution

The fourth proportional to 1,621,683.72, 2,237,986.67 and 1,076,880.15 is: 1,486,136.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621,683.72 : 2,237,986.67 = 1,076,880.15 : x
  2. Step 2: Convert to fraction form
    1,621,683.72/2,237,986.67 = 1,076,880.15/x
  3. Step 3: Cross multiply
    1,621,683.72x = 2,237,986.67 × 1,076,880.15
  4. Step 4: Simplify right side
    1,621,683.72x = 2,410,043,415,503.20
  5. Step 5: Solve for x
    x = 2,410,043,415,503.20/1,621,683.72
  6. Step 6: Final answer
    x = 1,486,136.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.