Finding the Fourth Proportional to 1,385,672.39, 1,911,699.21 and 841,602.95
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Solution
The fourth proportional to 1,385,672.39, 1,911,699.21 and 841,602.95 is: 1,161,090.96
Step by Step Solution
- Step 1: Write the proportion equation
1,385,672.39 : 1,911,699.21 = 841,602.95 : x - Step 2: Convert to fraction form
1,385,672.39/1,911,699.21 = 841,602.95/x - Step 3: Cross multiply
1,385,672.39x = 1,911,699.21 × 841,602.95 - Step 4: Simplify right side
1,385,672.39x = 1,608,891,680,882.16 - Step 5: Solve for x
x = 1,608,891,680,882.16/1,385,672.39 - Step 6: Final answer
x = 1,161,090.96
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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.