Home / 1,912,245.90-2,862,463.95-1,111,147.80

Finding the Fourth Proportional to 1,912,245.90, 2,862,463.95 and 1,111,147.80

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Solution

The fourth proportional to 1,912,245.90, 2,862,463.95 and 1,111,147.80 is: 1,663,290.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912,245.90 : 2,862,463.95 = 1,111,147.80 : x
  2. Step 2: Convert to fraction form
    1,912,245.90/2,862,463.95 = 1,111,147.80/x
  3. Step 3: Cross multiply
    1,912,245.90x = 2,862,463.95 × 1,111,147.80
  4. Step 4: Simplify right side
    1,912,245.90x = 3,180,620,520,621.81
  5. Step 5: Solve for x
    x = 3,180,620,520,621.81/1,912,245.90
  6. Step 6: Final answer
    x = 1,663,290.54

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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.