Home / 1,275,965.52-1,913,297.64-422,729.34

Finding the Fourth Proportional to 1,275,965.52, 1,913,297.64 and 422,729.34

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Solution

The fourth proportional to 1,275,965.52, 1,913,297.64 and 422,729.34 is: 633,878.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,965.52 : 1,913,297.64 = 422,729.34 : x
  2. Step 2: Convert to fraction form
    1,275,965.52/1,913,297.64 = 422,729.34/x
  3. Step 3: Cross multiply
    1,275,965.52x = 1,913,297.64 × 422,729.34
  4. Step 4: Simplify right side
    1,275,965.52x = 808,807,042,198.51
  5. Step 5: Solve for x
    x = 808,807,042,198.51/1,275,965.52
  6. Step 6: Final answer
    x = 633,878.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.