Home / 1,229,790.60-1,697,113.36-685,961.61

Finding the Fourth Proportional to 1,229,790.60, 1,697,113.36 and 685,961.61

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Solution

The fourth proportional to 1,229,790.60, 1,697,113.36 and 685,961.61 is: 946,628.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,790.60 : 1,697,113.36 = 685,961.61 : x
  2. Step 2: Convert to fraction form
    1,229,790.60/1,697,113.36 = 685,961.61/x
  3. Step 3: Cross multiply
    1,229,790.60x = 1,697,113.36 × 685,961.61
  4. Step 4: Simplify right side
    1,229,790.60x = 1,164,154,612,778.11
  5. Step 5: Solve for x
    x = 1,164,154,612,778.11/1,229,790.60
  6. Step 6: Final answer
    x = 946,628.32

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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.