Finding the Fourth Proportional to 2,157,075.14, 2,976,826 and 1,190,267.70
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Solution
The fourth proportional to 2,157,075.14, 2,976,826 and 1,190,267.70 is: 1,642,603.81
Step by Step Solution
- Step 1: Write the proportion equation
2,157,075.14 : 2,976,826 = 1,190,267.70 : x - Step 2: Convert to fraction form
2,157,075.14/2,976,826 = 1,190,267.70/x - Step 3: Cross multiply
2,157,075.14x = 2,976,826 × 1,190,267.70 - Step 4: Simplify right side
2,157,075.14x = 3,543,219,836,320.20 - Step 5: Solve for x
x = 3,543,219,836,320.20/2,157,075.14 - Step 6: Final answer
x = 1,642,603.81
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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.