Finding the Fourth Proportional to 2,116,247.28, 2,920,323.50 and 1,198,482.99
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Solution
The fourth proportional to 2,116,247.28, 2,920,323.50 and 1,198,482.99 is: 1,653,851.16
Step by Step Solution
- Step 1: Write the proportion equation
2,116,247.28 : 2,920,323.50 = 1,198,482.99 : x - Step 2: Convert to fraction form
2,116,247.28/2,920,323.50 = 1,198,482.99/x - Step 3: Cross multiply
2,116,247.28x = 2,920,323.50 × 1,198,482.99 - Step 4: Simplify right side
2,116,247.28x = 3,499,958,030,968.68 - Step 5: Solve for x
x = 3,499,958,030,968.68/2,116,247.28 - Step 6: Final answer
x = 1,653,851.16
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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.