Home / 1,307,996.79-1,805,528.82-764,309.28

Finding the Fourth Proportional to 1,307,996.79, 1,805,528.82 and 764,309.28

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Solution

The fourth proportional to 1,307,996.79, 1,805,528.82 and 764,309.28 is: 1,055,035.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307,996.79 : 1,805,528.82 = 764,309.28 : x
  2. Step 2: Convert to fraction form
    1,307,996.79/1,805,528.82 = 764,309.28/x
  3. Step 3: Cross multiply
    1,307,996.79x = 1,805,528.82 × 764,309.28
  4. Step 4: Simplify right side
    1,307,996.79x = 1,379,982,432,433.45
  5. Step 5: Solve for x
    x = 1,379,982,432,433.45/1,307,996.79
  6. Step 6: Final answer
    x = 1,055,035.03

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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.