Home / 919,940.80-1,379,911.20-837,272.20

Finding the Fourth Proportional to 919,940.80, 1,379,911.20 and 837,272.20

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Solution

The fourth proportional to 919,940.80, 1,379,911.20 and 837,272.20 is: 1,255,908.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,940.80 : 1,379,911.20 = 837,272.20 : x
  2. Step 2: Convert to fraction form
    919,940.80/1,379,911.20 = 837,272.20/x
  3. Step 3: Cross multiply
    919,940.80x = 1,379,911.20 × 837,272.20
  4. Step 4: Simplify right side
    919,940.80x = 1,155,361,286,228.64
  5. Step 5: Solve for x
    x = 1,155,361,286,228.64/919,940.80
  6. Step 6: Final answer
    x = 1,255,908.30

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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.