Home / 804,518.30-1,109,917.82-518,204.57

Finding the Fourth Proportional to 804,518.30, 1,109,917.82 and 518,204.57

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Solution

The fourth proportional to 804,518.30, 1,109,917.82 and 518,204.57 is: 714,917.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,518.30 : 1,109,917.82 = 518,204.57 : x
  2. Step 2: Convert to fraction form
    804,518.30/1,109,917.82 = 518,204.57/x
  3. Step 3: Cross multiply
    804,518.30x = 1,109,917.82 × 518,204.57
  4. Step 4: Simplify right side
    804,518.30x = 575,164,486,648.44
  5. Step 5: Solve for x
    x = 575,164,486,648.44/804,518.30
  6. Step 6: Final answer
    x = 714,917.84

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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.