Home / 1,145,921.40-1,581,371.09-629,708.55

Finding the Fourth Proportional to 1,145,921.40, 1,581,371.09 and 629,708.55

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Solution

The fourth proportional to 1,145,921.40, 1,581,371.09 and 629,708.55 is: 868,997.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,921.40 : 1,581,371.09 = 629,708.55 : x
  2. Step 2: Convert to fraction form
    1,145,921.40/1,581,371.09 = 629,708.55/x
  3. Step 3: Cross multiply
    1,145,921.40x = 1,581,371.09 × 629,708.55
  4. Step 4: Simplify right side
    1,145,921.40x = 995,802,896,095.82
  5. Step 5: Solve for x
    x = 995,802,896,095.82/1,145,921.40
  6. Step 6: Final answer
    x = 868,997.56

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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.