Home / 1,221,679.98-1,685,918.58-677,814.46

Finding the Fourth Proportional to 1,221,679.98, 1,685,918.58 and 677,814.46

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Solution

The fourth proportional to 1,221,679.98, 1,685,918.58 and 677,814.46 is: 935,384.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,679.98 : 1,685,918.58 = 677,814.46 : x
  2. Step 2: Convert to fraction form
    1,221,679.98/1,685,918.58 = 677,814.46/x
  3. Step 3: Cross multiply
    1,221,679.98x = 1,685,918.58 × 677,814.46
  4. Step 4: Simplify right side
    1,221,679.98x = 1,142,739,991,906.67
  5. Step 5: Solve for x
    x = 1,142,739,991,906.67/1,221,679.98
  6. Step 6: Final answer
    x = 935,384.07

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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.