Finding the Fourth Proportional to 1,580,365.09, 2,180,903.82 and 855,212.80
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Solution
The fourth proportional to 1,580,365.09, 2,180,903.82 and 855,212.80 is: 1,180,193.66
Step by Step Solution
- Step 1: Write the proportion equation
1,580,365.09 : 2,180,903.82 = 855,212.80 : x - Step 2: Convert to fraction form
1,580,365.09/2,180,903.82 = 855,212.80/x - Step 3: Cross multiply
1,580,365.09x = 2,180,903.82 × 855,212.80 - Step 4: Simplify right side
1,580,365.09x = 1,865,136,857,862.78 - Step 5: Solve for x
x = 1,865,136,857,862.78/1,580,365.09 - Step 6: Final answer
x = 1,180,193.66
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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.