Home / 1,228,978.36-1,696,091.16-677,801.89

Finding the Fourth Proportional to 1,228,978.36, 1,696,091.16 and 677,801.89

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Solution

The fourth proportional to 1,228,978.36, 1,696,091.16 and 677,801.89 is: 935,422.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,978.36 : 1,696,091.16 = 677,801.89 : x
  2. Step 2: Convert to fraction form
    1,228,978.36/1,696,091.16 = 677,801.89/x
  3. Step 3: Cross multiply
    1,228,978.36x = 1,696,091.16 × 677,801.89
  4. Step 4: Simplify right side
    1,228,978.36x = 1,149,613,793,860.29
  5. Step 5: Solve for x
    x = 1,149,613,793,860.29/1,228,978.36
  6. Step 6: Final answer
    x = 935,422.32

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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.