Finding the Fourth Proportional to 2,047,643.68, 2,825,729.40 and 1,129,881.28
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Solution
The fourth proportional to 2,047,643.68, 2,825,729.40 and 1,129,881.28 is: 1,559,225.75
Step by Step Solution
- Step 1: Write the proportion equation
2,047,643.68 : 2,825,729.40 = 1,129,881.28 : x - Step 2: Convert to fraction form
2,047,643.68/2,825,729.40 = 1,129,881.28/x - Step 3: Cross multiply
2,047,643.68x = 2,825,729.40 × 1,129,881.28 - Step 4: Simplify right side
2,047,643.68x = 3,192,738,751,405.63 - Step 5: Solve for x
x = 3,192,738,751,405.63/2,047,643.68 - Step 6: Final answer
x = 1,559,225.75
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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.