Home / 1,270,988.81-1,906,481.62-324,359.56

Finding the Fourth Proportional to 1,270,988.81, 1,906,481.62 and 324,359.56

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Solution

The fourth proportional to 1,270,988.81, 1,906,481.62 and 324,359.56 is: 486,538.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,988.81 : 1,906,481.62 = 324,359.56 : x
  2. Step 2: Convert to fraction form
    1,270,988.81/1,906,481.62 = 324,359.56/x
  3. Step 3: Cross multiply
    1,270,988.81x = 1,906,481.62 × 324,359.56
  4. Step 4: Simplify right side
    1,270,988.81x = 618,385,539,411.29
  5. Step 5: Solve for x
    x = 618,385,539,411.29/1,270,988.81
  6. Step 6: Final answer
    x = 486,538.93

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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.