Home / 1,645,648.43-2,271,204.92-920,536.43

Finding the Fourth Proportional to 1,645,648.43, 2,271,204.92 and 920,536.43

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Solution

The fourth proportional to 1,645,648.43, 2,271,204.92 and 920,536.43 is: 1,270,457.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645,648.43 : 2,271,204.92 = 920,536.43 : x
  2. Step 2: Convert to fraction form
    1,645,648.43/2,271,204.92 = 920,536.43/x
  3. Step 3: Cross multiply
    1,645,648.43x = 2,271,204.92 × 920,536.43
  4. Step 4: Simplify right side
    1,645,648.43x = 2,090,726,864,252.55
  5. Step 5: Solve for x
    x = 2,090,726,864,252.55/1,645,648.43
  6. Step 6: Final answer
    x = 1,270,457.79

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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.