Home / 1,201,866.52-1,658,667.92-685,631.78

Finding the Fourth Proportional to 1,201,866.52, 1,658,667.92 and 685,631.78

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Solution

The fourth proportional to 1,201,866.52, 1,658,667.92 and 685,631.78 is: 946,224.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201,866.52 : 1,658,667.92 = 685,631.78 : x
  2. Step 2: Convert to fraction form
    1,201,866.52/1,658,667.92 = 685,631.78/x
  3. Step 3: Cross multiply
    1,201,866.52x = 1,658,667.92 × 685,631.78
  4. Step 4: Simplify right side
    1,201,866.52x = 1,137,235,438,418.50
  5. Step 5: Solve for x
    x = 1,137,235,438,418.50/1,201,866.52
  6. Step 6: Final answer
    x = 946,224.41

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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.