Home / 1,096,167.78-1,512,291.56-666,291.06

Finding the Fourth Proportional to 1,096,167.78, 1,512,291.56 and 666,291.06

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Solution

The fourth proportional to 1,096,167.78, 1,512,291.56 and 666,291.06 is: 919,226.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,096,167.78 : 1,512,291.56 = 666,291.06 : x
  2. Step 2: Convert to fraction form
    1,096,167.78/1,512,291.56 = 666,291.06/x
  3. Step 3: Cross multiply
    1,096,167.78x = 1,512,291.56 × 666,291.06
  4. Step 4: Simplify right side
    1,096,167.78x = 1,007,626,346,541.45
  5. Step 5: Solve for x
    x = 1,007,626,346,541.45/1,096,167.78
  6. Step 6: Final answer
    x = 919,226.39

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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.