Home / 1,214,040.78-1,675,376.28-677,496.78

Finding the Fourth Proportional to 1,214,040.78, 1,675,376.28 and 677,496.78

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Solution

The fourth proportional to 1,214,040.78, 1,675,376.28 and 677,496.78 is: 934,945.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,040.78 : 1,675,376.28 = 677,496.78 : x
  2. Step 2: Convert to fraction form
    1,214,040.78/1,675,376.28 = 677,496.78/x
  3. Step 3: Cross multiply
    1,214,040.78x = 1,675,376.28 × 677,496.78
  4. Step 4: Simplify right side
    1,214,040.78x = 1,135,062,034,988.38
  5. Step 5: Solve for x
    x = 1,135,062,034,988.38/1,214,040.78
  6. Step 6: Final answer
    x = 934,945.56

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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.