Home / 989,257.89-1,483,946.97-279,339.46

Finding the Fourth Proportional to 989,257.89, 1,483,946.97 and 279,339.46

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Solution

The fourth proportional to 989,257.89, 1,483,946.97 and 279,339.46 is: 419,026.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,257.89 : 1,483,946.97 = 279,339.46 : x
  2. Step 2: Convert to fraction form
    989,257.89/1,483,946.97 = 279,339.46/x
  3. Step 3: Cross multiply
    989,257.89x = 1,483,946.97 × 279,339.46
  4. Step 4: Simplify right side
    989,257.89x = 414,524,945,268.44
  5. Step 5: Solve for x
    x = 414,524,945,268.44/989,257.89
  6. Step 6: Final answer
    x = 419,026.17

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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.