Home / 689,673-1,032,867.90-351,883.56

Finding the Fourth Proportional to 689,673, 1,032,867.90 and 351,883.56

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Solution

The fourth proportional to 689,673, 1,032,867.90 and 351,883.56 is: 526,987.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,673 : 1,032,867.90 = 351,883.56 : x
  2. Step 2: Convert to fraction form
    689,673/1,032,867.90 = 351,883.56/x
  3. Step 3: Cross multiply
    689,673x = 1,032,867.90 × 351,883.56
  4. Step 4: Simplify right side
    689,673x = 363,449,233,661.72
  5. Step 5: Solve for x
    x = 363,449,233,661.72/689,673
  6. Step 6: Final answer
    x = 526,987.77

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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.