Home / 2,185,056-3,278,167.20-689,148

Finding the Fourth Proportional to 2,185,056, 3,278,167.20 and 689,148

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Solution

The fourth proportional to 2,185,056, 3,278,167.20 and 689,148 is: 1,033,905.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,185,056 : 3,278,167.20 = 689,148 : x
  2. Step 2: Convert to fraction form
    2,185,056/3,278,167.20 = 689,148/x
  3. Step 3: Cross multiply
    2,185,056x = 3,278,167.20 × 689,148
  4. Step 4: Simplify right side
    2,185,056x = 2,259,142,369,545.60
  5. Step 5: Solve for x
    x = 2,259,142,369,545.60/2,185,056
  6. Step 6: Final answer
    x = 1,033,905.94

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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.