Home / 2,076,090.40-3,110,449.20-1,287,200.80

Finding the Fourth Proportional to 2,076,090.40, 3,110,449.20 and 1,287,200.80

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Solution

The fourth proportional to 2,076,090.40, 3,110,449.20 and 1,287,200.80 is: 1,928,515.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,076,090.40 : 3,110,449.20 = 1,287,200.80 : x
  2. Step 2: Convert to fraction form
    2,076,090.40/3,110,449.20 = 1,287,200.80/x
  3. Step 3: Cross multiply
    2,076,090.40x = 3,110,449.20 × 1,287,200.80
  4. Step 4: Simplify right side
    2,076,090.40x = 4,003,772,698,599.36
  5. Step 5: Solve for x
    x = 4,003,772,698,599.36/2,076,090.40
  6. Step 6: Final answer
    x = 1,928,515.59

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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.