Home / 1,688,098.73-2,328,067.37-1,230,280.38

Finding the Fourth Proportional to 1,688,098.73, 2,328,067.37 and 1,230,280.38

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Solution

The fourth proportional to 1,688,098.73, 2,328,067.37 and 1,230,280.38 is: 1,696,687.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688,098.73 : 2,328,067.37 = 1,230,280.38 : x
  2. Step 2: Convert to fraction form
    1,688,098.73/2,328,067.37 = 1,230,280.38/x
  3. Step 3: Cross multiply
    1,688,098.73x = 2,328,067.37 × 1,230,280.38
  4. Step 4: Simplify right side
    1,688,098.73x = 2,864,175,611,704.90
  5. Step 5: Solve for x
    x = 2,864,175,611,704.90/1,688,098.73
  6. Step 6: Final answer
    x = 1,696,687.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.