Home / 1,645,768.82-2,271,054.30-920,491.04

Finding the Fourth Proportional to 1,645,768.82, 2,271,054.30 and 920,491.04

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Solution

The fourth proportional to 1,645,768.82, 2,271,054.30 and 920,491.04 is: 1,270,217.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645,768.82 : 2,271,054.30 = 920,491.04 : x
  2. Step 2: Convert to fraction form
    1,645,768.82/2,271,054.30 = 920,491.04/x
  3. Step 3: Cross multiply
    1,645,768.82x = 2,271,054.30 × 920,491.04
  4. Step 4: Simplify right side
    1,645,768.82x = 2,090,485,134,503.47
  5. Step 5: Solve for x
    x = 2,090,485,134,503.47/1,645,768.82
  6. Step 6: Final answer
    x = 1,270,217.97

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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.