Home / 1,080,090.43-1,620,129.84-440,391.72

Finding the Fourth Proportional to 1,080,090.43, 1,620,129.84 and 440,391.72

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Solution

The fourth proportional to 1,080,090.43, 1,620,129.84 and 440,391.72 is: 660,585.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,090.43 : 1,620,129.84 = 440,391.72 : x
  2. Step 2: Convert to fraction form
    1,080,090.43/1,620,129.84 = 440,391.72/x
  3. Step 3: Cross multiply
    1,080,090.43x = 1,620,129.84 × 440,391.72
  4. Step 4: Simplify right side
    1,080,090.43x = 713,491,766,860.93
  5. Step 5: Solve for x
    x = 713,491,766,860.93/1,080,090.43
  6. Step 6: Final answer
    x = 660,585.21

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1.5x scale

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.