Home / 878,878.76-1,318,422.02-279,629.82

Finding the Fourth Proportional to 878,878.76, 1,318,422.02 and 279,629.82

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Solution

The fourth proportional to 878,878.76, 1,318,422.02 and 279,629.82 is: 419,477.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,878.76 : 1,318,422.02 = 279,629.82 : x
  2. Step 2: Convert to fraction form
    878,878.76/1,318,422.02 = 279,629.82/x
  3. Step 3: Cross multiply
    878,878.76x = 1,318,422.02 × 279,629.82
  4. Step 4: Simplify right side
    878,878.76x = 368,670,110,738.49
  5. Step 5: Solve for x
    x = 368,670,110,738.49/878,878.76
  6. Step 6: Final answer
    x = 419,477.78

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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.