Home / 1,820,911.41-2,512,857.87-1,005,115.32

Finding the Fourth Proportional to 1,820,911.41, 2,512,857.87 and 1,005,115.32

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Solution

The fourth proportional to 1,820,911.41, 2,512,857.87 and 1,005,115.32 is: 1,387,059.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820,911.41 : 2,512,857.87 = 1,005,115.32 : x
  2. Step 2: Convert to fraction form
    1,820,911.41/2,512,857.87 = 1,005,115.32/x
  3. Step 3: Cross multiply
    1,820,911.41x = 2,512,857.87 × 1,005,115.32
  4. Step 4: Simplify right side
    1,820,911.41x = 2,525,711,942,119.57
  5. Step 5: Solve for x
    x = 2,525,711,942,119.57/1,820,911.41
  6. Step 6: Final answer
    x = 1,387,059.21

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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.