Home / 773,906.70-1,157,856.56-678,418.64

Finding the Fourth Proportional to 773,906.70, 1,157,856.56 and 678,418.64

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Solution

The fourth proportional to 773,906.70, 1,157,856.56 and 678,418.64 is: 1,014,995.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,906.70 : 1,157,856.56 = 678,418.64 : x
  2. Step 2: Convert to fraction form
    773,906.70/1,157,856.56 = 678,418.64/x
  3. Step 3: Cross multiply
    773,906.70x = 1,157,856.56 × 678,418.64
  4. Step 4: Simplify right side
    773,906.70x = 785,511,470,454.94
  5. Step 5: Solve for x
    x = 785,511,470,454.94/773,906.70
  6. Step 6: Final answer
    x = 1,014,995.05

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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.