Home / 1,229,550.90-1,696,776.95-685,687.31

Finding the Fourth Proportional to 1,229,550.90, 1,696,776.95 and 685,687.31

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Solution

The fourth proportional to 1,229,550.90, 1,696,776.95 and 685,687.31 is: 946,246.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,550.90 : 1,696,776.95 = 685,687.31 : x
  2. Step 2: Convert to fraction form
    1,229,550.90/1,696,776.95 = 685,687.31/x
  3. Step 3: Cross multiply
    1,229,550.90x = 1,696,776.95 × 685,687.31
  4. Step 4: Simplify right side
    1,229,550.90x = 1,163,458,410,603.18
  5. Step 5: Solve for x
    x = 1,163,458,410,603.18/1,229,550.90
  6. Step 6: Final answer
    x = 946,246.64

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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.