Home / 774,003.20-1,161,004.80-205,383.20

Finding the Fourth Proportional to 774,003.20, 1,161,004.80 and 205,383.20

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Solution

The fourth proportional to 774,003.20, 1,161,004.80 and 205,383.20 is: 308,074.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,003.20 : 1,161,004.80 = 205,383.20 : x
  2. Step 2: Convert to fraction form
    774,003.20/1,161,004.80 = 205,383.20/x
  3. Step 3: Cross multiply
    774,003.20x = 1,161,004.80 × 205,383.20
  4. Step 4: Simplify right side
    774,003.20x = 238,450,881,039.36
  5. Step 5: Solve for x
    x = 238,450,881,039.36/774,003.20
  6. Step 6: Final answer
    x = 308,074.80

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Double scale
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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.