Home / 1,229,661.22-1,696,933.92-678,364.42

Finding the Fourth Proportional to 1,229,661.22, 1,696,933.92 and 678,364.42

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Solution

The fourth proportional to 1,229,661.22, 1,696,933.92 and 678,364.42 is: 936,143.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,661.22 : 1,696,933.92 = 678,364.42 : x
  2. Step 2: Convert to fraction form
    1,229,661.22/1,696,933.92 = 678,364.42/x
  3. Step 3: Cross multiply
    1,229,661.22x = 1,696,933.92 × 678,364.42
  4. Step 4: Simplify right side
    1,229,661.22x = 1,151,139,594,419.13
  5. Step 5: Solve for x
    x = 1,151,139,594,419.13/1,229,661.22
  6. Step 6: Final answer
    x = 936,143.69

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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.