Home / 725,493.76-1,001,168.64-403,203.84

Finding the Fourth Proportional to 725,493.76, 1,001,168.64 and 403,203.84

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Solution

The fourth proportional to 725,493.76, 1,001,168.64 and 403,203.84 is: 556,414.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,493.76 : 1,001,168.64 = 403,203.84 : x
  2. Step 2: Convert to fraction form
    725,493.76/1,001,168.64 = 403,203.84/x
  3. Step 3: Cross multiply
    725,493.76x = 1,001,168.64 × 403,203.84
  4. Step 4: Simplify right side
    725,493.76x = 403,675,040,135.58
  5. Step 5: Solve for x
    x = 403,675,040,135.58/725,493.76
  6. Step 6: Final answer
    x = 556,414.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.