Home / 1,081,505.30-1,622,261.49-407,405.69

Finding the Fourth Proportional to 1,081,505.30, 1,622,261.49 and 407,405.69

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Solution

The fourth proportional to 1,081,505.30, 1,622,261.49 and 407,405.69 is: 611,109.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081,505.30 : 1,622,261.49 = 407,405.69 : x
  2. Step 2: Convert to fraction form
    1,081,505.30/1,622,261.49 = 407,405.69/x
  3. Step 3: Cross multiply
    1,081,505.30x = 1,622,261.49 × 407,405.69
  4. Step 4: Simplify right side
    1,081,505.30x = 660,918,553,582.57
  5. Step 5: Solve for x
    x = 660,918,553,582.57/1,081,505.30
  6. Step 6: Final answer
    x = 611,109.86

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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.