Home / 1,090,694.22-1,636,128.81-380,706.54

Finding the Fourth Proportional to 1,090,694.22, 1,636,128.81 and 380,706.54

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Solution

The fourth proportional to 1,090,694.22, 1,636,128.81 and 380,706.54 is: 571,090.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,694.22 : 1,636,128.81 = 380,706.54 : x
  2. Step 2: Convert to fraction form
    1,090,694.22/1,636,128.81 = 380,706.54/x
  3. Step 3: Cross multiply
    1,090,694.22x = 1,636,128.81 × 380,706.54
  4. Step 4: Simplify right side
    1,090,694.22x = 622,884,938,249.42
  5. Step 5: Solve for x
    x = 622,884,938,249.42/1,090,694.22
  6. Step 6: Final answer
    x = 571,090.34

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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.