Finding the Fourth Proportional to 1,511,538.80, 2,265,966.84 and 613,644.08
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Solution
The fourth proportional to 1,511,538.80, 2,265,966.84 and 613,644.08 is: 919,921.56
Step by Step Solution
- Step 1: Write the proportion equation
1,511,538.80 : 2,265,966.84 = 613,644.08 : x - Step 2: Convert to fraction form
1,511,538.80/2,265,966.84 = 613,644.08/x - Step 3: Cross multiply
1,511,538.80x = 2,265,966.84 × 613,644.08 - Step 4: Simplify right side
1,511,538.80x = 1,390,497,136,842.31 - Step 5: Solve for x
x = 1,390,497,136,842.31/1,511,538.80 - Step 6: Final answer
x = 919,921.56
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.