Home / 1,489,580.93-2,232,621.78-689,171.73

Finding the Fourth Proportional to 1,489,580.93, 2,232,621.78 and 689,171.73

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Solution

The fourth proportional to 1,489,580.93, 2,232,621.78 and 689,171.73 is: 1,032,948.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,580.93 : 2,232,621.78 = 689,171.73 : x
  2. Step 2: Convert to fraction form
    1,489,580.93/2,232,621.78 = 689,171.73/x
  3. Step 3: Cross multiply
    1,489,580.93x = 2,232,621.78 × 689,171.73
  4. Step 4: Simplify right side
    1,489,580.93x = 1,538,659,814,558.28
  5. Step 5: Solve for x
    x = 1,538,659,814,558.28/1,489,580.93
  6. Step 6: Final answer
    x = 1,032,948.12

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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.