Home / 1,383,289.45-2,070,616.31-1,018,961.78

Finding the Fourth Proportional to 1,383,289.45, 2,070,616.31 and 1,018,961.78

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Solution

The fourth proportional to 1,383,289.45, 2,070,616.31 and 1,018,961.78 is: 1,525,262.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,289.45 : 2,070,616.31 = 1,018,961.78 : x
  2. Step 2: Convert to fraction form
    1,383,289.45/2,070,616.31 = 1,018,961.78/x
  3. Step 3: Cross multiply
    1,383,289.45x = 2,070,616.31 × 1,018,961.78
  4. Step 4: Simplify right side
    1,383,289.45x = 2,109,878,875,039.51
  5. Step 5: Solve for x
    x = 2,109,878,875,039.51/1,383,289.45
  6. Step 6: Final answer
    x = 1,525,262.03

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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.