Home / 1,640,270.80-2,460,406.20-1,380,455.20

Finding the Fourth Proportional to 1,640,270.80, 2,460,406.20 and 1,380,455.20

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Solution

The fourth proportional to 1,640,270.80, 2,460,406.20 and 1,380,455.20 is: 2,070,682.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,270.80 : 2,460,406.20 = 1,380,455.20 : x
  2. Step 2: Convert to fraction form
    1,640,270.80/2,460,406.20 = 1,380,455.20/x
  3. Step 3: Cross multiply
    1,640,270.80x = 2,460,406.20 × 1,380,455.20
  4. Step 4: Simplify right side
    1,640,270.80x = 3,396,480,532,902.24
  5. Step 5: Solve for x
    x = 3,396,480,532,902.24/1,640,270.80
  6. Step 6: Final answer
    x = 2,070,682.80

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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.