Home / 1,116,107.56-1,540,507.44-686,138.58

Finding the Fourth Proportional to 1,116,107.56, 1,540,507.44 and 686,138.58

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Solution

The fourth proportional to 1,116,107.56, 1,540,507.44 and 686,138.58 is: 947,042.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116,107.56 : 1,540,507.44 = 686,138.58 : x
  2. Step 2: Convert to fraction form
    1,116,107.56/1,540,507.44 = 686,138.58/x
  3. Step 3: Cross multiply
    1,116,107.56x = 1,540,507.44 × 686,138.58
  4. Step 4: Simplify right side
    1,116,107.56x = 1,057,001,587,361.04
  5. Step 5: Solve for x
    x = 1,057,001,587,361.04/1,116,107.56
  6. Step 6: Final answer
    x = 947,042.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.