Home / 1,081,505.17-1,622,261.30-407,405.56

Finding the Fourth Proportional to 1,081,505.17, 1,622,261.30 and 407,405.56

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Solution

The fourth proportional to 1,081,505.17, 1,622,261.30 and 407,405.56 is: 611,109.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081,505.17 : 1,622,261.30 = 407,405.56 : x
  2. Step 2: Convert to fraction form
    1,081,505.17/1,622,261.30 = 407,405.56/x
  3. Step 3: Cross multiply
    1,081,505.17x = 1,622,261.30 × 407,405.56
  4. Step 4: Simplify right side
    1,081,505.17x = 660,918,273,392.83
  5. Step 5: Solve for x
    x = 660,918,273,392.83/1,081,505.17
  6. Step 6: Final answer
    x = 611,109.68

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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.