Home / 876,076.56-1,314,256.86-343,308.72

Finding the Fourth Proportional to 876,076.56, 1,314,256.86 and 343,308.72

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Solution

The fourth proportional to 876,076.56, 1,314,256.86 and 343,308.72 is: 515,018.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,076.56 : 1,314,256.86 = 343,308.72 : x
  2. Step 2: Convert to fraction form
    876,076.56/1,314,256.86 = 343,308.72/x
  3. Step 3: Cross multiply
    876,076.56x = 1,314,256.86 × 343,308.72
  4. Step 4: Simplify right side
    876,076.56x = 451,195,840,357.82
  5. Step 5: Solve for x
    x = 451,195,840,357.82/876,076.56
  6. Step 6: Final answer
    x = 515,018.73

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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.