Home / 751,015.60-1,126,388.78-211,142.40

Finding the Fourth Proportional to 751,015.60, 1,126,388.78 and 211,142.40

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Solution

The fourth proportional to 751,015.60, 1,126,388.78 and 211,142.40 is: 316,675.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,015.60 : 1,126,388.78 = 211,142.40 : x
  2. Step 2: Convert to fraction form
    751,015.60/1,126,388.78 = 211,142.40/x
  3. Step 3: Cross multiply
    751,015.60x = 1,126,388.78 × 211,142.40
  4. Step 4: Simplify right side
    751,015.60x = 237,828,427,042.06
  5. Step 5: Solve for x
    x = 237,828,427,042.06/751,015.60
  6. Step 6: Final answer
    x = 316,675.75

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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.