Home / 686,028.51-1,028,493.24-326,018.70

Finding the Fourth Proportional to 686,028.51, 1,028,493.24 and 326,018.70

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Solution

The fourth proportional to 686,028.51, 1,028,493.24 and 326,018.70 is: 488,766.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,028.51 : 1,028,493.24 = 326,018.70 : x
  2. Step 2: Convert to fraction form
    686,028.51/1,028,493.24 = 326,018.70/x
  3. Step 3: Cross multiply
    686,028.51x = 1,028,493.24 × 326,018.70
  4. Step 4: Simplify right side
    686,028.51x = 335,308,029,063.59
  5. Step 5: Solve for x
    x = 335,308,029,063.59/686,028.51
  6. Step 6: Final answer
    x = 488,766.90

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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.