Home / 1,989,742.54-2,743,893.90-1,263,329.14

Finding the Fourth Proportional to 1,989,742.54, 2,743,893.90 and 1,263,329.14

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Solution

The fourth proportional to 1,989,742.54, 2,743,893.90 and 1,263,329.14 is: 1,742,155.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,742.54 : 2,743,893.90 = 1,263,329.14 : x
  2. Step 2: Convert to fraction form
    1,989,742.54/2,743,893.90 = 1,263,329.14/x
  3. Step 3: Cross multiply
    1,989,742.54x = 2,743,893.90 × 1,263,329.14
  4. Step 4: Simplify right side
    1,989,742.54x = 3,466,441,120,938.25
  5. Step 5: Solve for x
    x = 3,466,441,120,938.25/1,989,742.54
  6. Step 6: Final answer
    x = 1,742,155.61

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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.