Home / 1,221,364.78-1,685,493.56-677,536.25

Finding the Fourth Proportional to 1,221,364.78, 1,685,493.56 and 677,536.25

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Solution

The fourth proportional to 1,221,364.78, 1,685,493.56 and 677,536.25 is: 935,005.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,364.78 : 1,685,493.56 = 677,536.25 : x
  2. Step 2: Convert to fraction form
    1,221,364.78/1,685,493.56 = 677,536.25/x
  3. Step 3: Cross multiply
    1,221,364.78x = 1,685,493.56 × 677,536.25
  4. Step 4: Simplify right side
    1,221,364.78x = 1,141,982,979,307.92
  5. Step 5: Solve for x
    x = 1,141,982,979,307.92/1,221,364.78
  6. Step 6: Final answer
    x = 935,005.66

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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.