Home / 751,251.42-1,126,918.17-190,290.78

Finding the Fourth Proportional to 751,251.42, 1,126,918.17 and 190,290.78

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Solution

The fourth proportional to 751,251.42, 1,126,918.17 and 190,290.78 is: 285,446.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,251.42 : 1,126,918.17 = 190,290.78 : x
  2. Step 2: Convert to fraction form
    751,251.42/1,126,918.17 = 190,290.78/x
  3. Step 3: Cross multiply
    751,251.42x = 1,126,918.17 × 190,290.78
  4. Step 4: Simplify right side
    751,251.42x = 214,442,137,565.47
  5. Step 5: Solve for x
    x = 214,442,137,565.47/751,251.42
  6. Step 6: Final answer
    x = 285,446.57

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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.