Finding the Fourth Proportional to 1,609,114.18, 2,220,330.97 and 929,919.62
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Solution
The fourth proportional to 1,609,114.18, 2,220,330.97 and 929,919.62 is: 1,283,146.56
Step by Step Solution
- Step 1: Write the proportion equation
1,609,114.18 : 2,220,330.97 = 929,919.62 : x - Step 2: Convert to fraction form
1,609,114.18/2,220,330.97 = 929,919.62/x - Step 3: Cross multiply
1,609,114.18x = 2,220,330.97 × 929,919.62 - Step 4: Simplify right side
1,609,114.18x = 2,064,729,331,896.63 - Step 5: Solve for x
x = 2,064,729,331,896.63/1,609,114.18 - Step 6: Final answer
x = 1,283,146.56
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1.5x scale
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.