Home / 879,917.78-1,213,659.14-807,553.82

Finding the Fourth Proportional to 879,917.78, 1,213,659.14 and 807,553.82

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Solution

The fourth proportional to 879,917.78, 1,213,659.14 and 807,553.82 is: 1,113,848.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,917.78 : 1,213,659.14 = 807,553.82 : x
  2. Step 2: Convert to fraction form
    879,917.78/1,213,659.14 = 807,553.82/x
  3. Step 3: Cross multiply
    879,917.78x = 1,213,659.14 × 807,553.82
  4. Step 4: Simplify right side
    879,917.78x = 980,095,064,578.85
  5. Step 5: Solve for x
    x = 980,095,064,578.85/879,917.78
  6. Step 6: Final answer
    x = 1,113,848.47

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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.