Home / 1,645,771.32-2,271,057.75-920,493.54

Finding the Fourth Proportional to 1,645,771.32, 2,271,057.75 and 920,493.54

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Solution

The fourth proportional to 1,645,771.32, 2,271,057.75 and 920,493.54 is: 1,270,221.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645,771.32 : 2,271,057.75 = 920,493.54 : x
  2. Step 2: Convert to fraction form
    1,645,771.32/2,271,057.75 = 920,493.54/x
  3. Step 3: Cross multiply
    1,645,771.32x = 2,271,057.75 × 920,493.54
  4. Step 4: Simplify right side
    1,645,771.32x = 2,090,493,987,841.94
  5. Step 5: Solve for x
    x = 2,090,493,987,841.94/1,645,771.32
  6. Step 6: Final answer
    x = 1,270,221.42

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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.