Home / 816,111.20-1,224,166.80-727,464.80

Finding the Fourth Proportional to 816,111.20, 1,224,166.80 and 727,464.80

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Solution

The fourth proportional to 816,111.20, 1,224,166.80 and 727,464.80 is: 1,091,197.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,111.20 : 1,224,166.80 = 727,464.80 : x
  2. Step 2: Convert to fraction form
    816,111.20/1,224,166.80 = 727,464.80/x
  3. Step 3: Cross multiply
    816,111.20x = 1,224,166.80 × 727,464.80
  4. Step 4: Simplify right side
    816,111.20x = 890,538,256,328.64
  5. Step 5: Solve for x
    x = 890,538,256,328.64/816,111.20
  6. Step 6: Final answer
    x = 1,091,197.20

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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.