Home / 1,320,986.70-1,823,519.79-891,848.16

Finding the Fourth Proportional to 1,320,986.70, 1,823,519.79 and 891,848.16

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Solution

The fourth proportional to 1,320,986.70, 1,823,519.79 and 891,848.16 is: 1,231,127.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,986.70 : 1,823,519.79 = 891,848.16 : x
  2. Step 2: Convert to fraction form
    1,320,986.70/1,823,519.79 = 891,848.16/x
  3. Step 3: Cross multiply
    1,320,986.70x = 1,823,519.79 × 891,848.16
  4. Step 4: Simplify right side
    1,320,986.70x = 1,626,302,769,435.09
  5. Step 5: Solve for x
    x = 1,626,302,769,435.09/1,320,986.70
  6. Step 6: Final answer
    x = 1,231,127.28

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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.