Finding the Fourth Proportional to 744,921.97, 1,028,208.94 and 486,837.74
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Solution
The fourth proportional to 744,921.97, 1,028,208.94 and 486,837.74 is: 671,977.66
Step by Step Solution
- Step 1: Write the proportion equation
744,921.97 : 1,028,208.94 = 486,837.74 : x - Step 2: Convert to fraction form
744,921.97/1,028,208.94 = 486,837.74/x - Step 3: Cross multiply
744,921.97x = 1,028,208.94 × 486,837.74 - Step 4: Simplify right side
744,921.97x = 500,570,917,950.82 - Step 5: Solve for x
x = 500,570,917,950.82/744,921.97 - Step 6: Final answer
x = 671,977.66
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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.