Home / 1,240,707.51-1,861,377-728,805.54

Finding the Fourth Proportional to 1,240,707.51, 1,861,377 and 728,805.54

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Solution

The fourth proportional to 1,240,707.51, 1,861,377 and 728,805.54 is: 1,093,393.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,707.51 : 1,861,377 = 728,805.54 : x
  2. Step 2: Convert to fraction form
    1,240,707.51/1,861,377 = 728,805.54/x
  3. Step 3: Cross multiply
    1,240,707.51x = 1,861,377 × 728,805.54
  4. Step 4: Simplify right side
    1,240,707.51x = 1,356,581,869,628.58
  5. Step 5: Solve for x
    x = 1,356,581,869,628.58/1,240,707.51
  6. Step 6: Final answer
    x = 1,093,393.78

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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.