Finding the Fourth Proportional to 1,403,577.79, 1,936,893.67 and 791,721.41
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Solution
The fourth proportional to 1,403,577.79, 1,936,893.67 and 791,721.41 is: 1,092,550.90
Step by Step Solution
- Step 1: Write the proportion equation
1,403,577.79 : 1,936,893.67 = 791,721.41 : x - Step 2: Convert to fraction form
1,403,577.79/1,936,893.67 = 791,721.41/x - Step 3: Cross multiply
1,403,577.79x = 1,936,893.67 × 791,721.41 - Step 4: Simplify right side
1,403,577.79x = 1,533,480,175,768.70 - Step 5: Solve for x
x = 1,533,480,175,768.70/1,403,577.79 - Step 6: Final answer
x = 1,092,550.90
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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.