Home / 1,221,044.28-1,685,141.99-677,355.36

Finding the Fourth Proportional to 1,221,044.28, 1,685,141.99 and 677,355.36

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Solution

The fourth proportional to 1,221,044.28, 1,685,141.99 and 677,355.36 is: 934,806.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,044.28 : 1,685,141.99 = 677,355.36 : x
  2. Step 2: Convert to fraction form
    1,221,044.28/1,685,141.99 = 677,355.36/x
  3. Step 3: Cross multiply
    1,221,044.28x = 1,685,141.99 × 677,355.36
  4. Step 4: Simplify right side
    1,221,044.28x = 1,141,439,959,287.57
  5. Step 5: Solve for x
    x = 1,141,439,959,287.57/1,221,044.28
  6. Step 6: Final answer
    x = 934,806.36

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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.