Finding the Fourth Proportional to 1,055,482.31, 1,582,623.47 and 415,439.09
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Solution
The fourth proportional to 1,055,482.31, 1,582,623.47 and 415,439.09 is: 622,922.47
Step by Step Solution
- Step 1: Write the proportion equation
1,055,482.31 : 1,582,623.47 = 415,439.09 : x - Step 2: Convert to fraction form
1,055,482.31/1,582,623.47 = 415,439.09/x - Step 3: Cross multiply
1,055,482.31x = 1,582,623.47 × 415,439.09 - Step 4: Simplify right side
1,055,482.31x = 657,483,644,199.13 - Step 5: Solve for x
x = 657,483,644,199.13/1,055,482.31 - Step 6: Final answer
x = 622,922.47
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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.