Finding the Fourth Proportional to 2,914,859.20, 4,371,511.20 and 1,021,403.20
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Solution
The fourth proportional to 2,914,859.20, 4,371,511.20 and 1,021,403.20 is: 1,531,832.32
Step by Step Solution
- Step 1: Write the proportion equation
2,914,859.20 : 4,371,511.20 = 1,021,403.20 : x - Step 2: Convert to fraction form
2,914,859.20/4,371,511.20 = 1,021,403.20/x - Step 3: Cross multiply
2,914,859.20x = 4,371,511.20 × 1,021,403.20 - Step 4: Simplify right side
2,914,859.20x = 4,465,075,528,515.84 - Step 5: Solve for x
x = 4,465,075,528,515.84/2,914,859.20 - Step 6: Final answer
x = 1,531,832.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.