Home / 1,820,969.15-2,512,937.92-1,005,173.36

Finding the Fourth Proportional to 1,820,969.15, 2,512,937.92 and 1,005,173.36

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Solution

The fourth proportional to 1,820,969.15, 2,512,937.92 and 1,005,173.36 is: 1,387,139.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820,969.15 : 2,512,937.92 = 1,005,173.36 : x
  2. Step 2: Convert to fraction form
    1,820,969.15/2,512,937.92 = 1,005,173.36/x
  3. Step 3: Cross multiply
    1,820,969.15x = 2,512,937.92 × 1,005,173.36
  4. Step 4: Simplify right side
    1,820,969.15x = 2,525,938,252,517.81
  5. Step 5: Solve for x
    x = 2,525,938,252,517.81/1,820,969.15
  6. Step 6: Final answer
    x = 1,387,139.51

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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.