Home / 1,230,198.35-1,697,674.78-686,334.22

Finding the Fourth Proportional to 1,230,198.35, 1,697,674.78 and 686,334.22

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Solution

The fourth proportional to 1,230,198.35, 1,697,674.78 and 686,334.22 is: 947,141.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,198.35 : 1,697,674.78 = 686,334.22 : x
  2. Step 2: Convert to fraction form
    1,230,198.35/1,697,674.78 = 686,334.22/x
  3. Step 3: Cross multiply
    1,230,198.35x = 1,697,674.78 × 686,334.22
  4. Step 4: Simplify right side
    1,230,198.35x = 1,165,172,294,437.97
  5. Step 5: Solve for x
    x = 1,165,172,294,437.97/1,230,198.35
  6. Step 6: Final answer
    x = 947,141.81

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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.