Home / 1,821,272.21-2,513,358.84-1,005,477.21

Finding the Fourth Proportional to 1,821,272.21, 2,513,358.84 and 1,005,477.21

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Solution

The fourth proportional to 1,821,272.21, 2,513,358.84 and 1,005,477.21 is: 1,387,560.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821,272.21 : 2,513,358.84 = 1,005,477.21 : x
  2. Step 2: Convert to fraction form
    1,821,272.21/2,513,358.84 = 1,005,477.21/x
  3. Step 3: Cross multiply
    1,821,272.21x = 2,513,358.84 × 1,005,477.21
  4. Step 4: Simplify right side
    1,821,272.21x = 2,527,125,025,217.94
  5. Step 5: Solve for x
    x = 2,527,125,025,217.94/1,821,272.21
  6. Step 6: Final answer
    x = 1,387,560.31

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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.