Home / 685,733.82-1,028,518.80-180,334.17

Finding the Fourth Proportional to 685,733.82, 1,028,518.80 and 180,334.17

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Solution

The fourth proportional to 685,733.82, 1,028,518.80 and 180,334.17 is: 270,479.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,733.82 : 1,028,518.80 = 180,334.17 : x
  2. Step 2: Convert to fraction form
    685,733.82/1,028,518.80 = 180,334.17/x
  3. Step 3: Cross multiply
    685,733.82x = 1,028,518.80 × 180,334.17
  4. Step 4: Simplify right side
    685,733.82x = 185,477,084,127.40
  5. Step 5: Solve for x
    x = 185,477,084,127.40/685,733.82
  6. Step 6: Final answer
    x = 270,479.71

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.