Home / 786,954.80-1,181,015.40-313,979.60

Finding the Fourth Proportional to 786,954.80, 1,181,015.40 and 313,979.60

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Solution

The fourth proportional to 786,954.80, 1,181,015.40 and 313,979.60 is: 471,202.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,954.80 : 1,181,015.40 = 313,979.60 : x
  2. Step 2: Convert to fraction form
    786,954.80/1,181,015.40 = 313,979.60/x
  3. Step 3: Cross multiply
    786,954.80x = 1,181,015.40 × 313,979.60
  4. Step 4: Simplify right side
    786,954.80x = 370,814,742,885.84
  5. Step 5: Solve for x
    x = 370,814,742,885.84/786,954.80
  6. Step 6: Final answer
    x = 471,202.09

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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.