Finding the Fourth Proportional to 1,247,361.18, 1,721,625.48 and 788,184.24
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Solution
The fourth proportional to 1,247,361.18, 1,721,625.48 and 788,184.24 is: 1,087,863.00
Step by Step Solution
- Step 1: Write the proportion equation
1,247,361.18 : 1,721,625.48 = 788,184.24 : x - Step 2: Convert to fraction form
1,247,361.18/1,721,625.48 = 788,184.24/x - Step 3: Cross multiply
1,247,361.18x = 1,721,625.48 × 788,184.24 - Step 4: Simplify right side
1,247,361.18x = 1,356,958,070,518.44 - Step 5: Solve for x
x = 1,356,958,070,518.44/1,247,361.18 - Step 6: Final answer
x = 1,087,863.00
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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.