Finding the Fourth Proportional to 1,580,508.09, 2,181,101.31 and 855,361.08
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Solution
The fourth proportional to 1,580,508.09, 2,181,101.31 and 855,361.08 is: 1,180,398.37
Step by Step Solution
- Step 1: Write the proportion equation
1,580,508.09 : 2,181,101.31 = 855,361.08 : x - Step 2: Convert to fraction form
1,580,508.09/2,181,101.31 = 855,361.08/x - Step 3: Cross multiply
1,580,508.09x = 2,181,101.31 × 855,361.08 - Step 4: Simplify right side
1,580,508.09x = 1,865,629,172,111.01 - Step 5: Solve for x
x = 1,865,629,172,111.01/1,580,508.09 - Step 6: Final answer
x = 1,180,398.37
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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.