Finding the Fourth Proportional to 1,507,090.62, 2,079,787.53 and 818,765.19
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Solution
The fourth proportional to 1,507,090.62, 2,079,787.53 and 818,765.19 is: 1,129,897.31
Step by Step Solution
- Step 1: Write the proportion equation
1,507,090.62 : 2,079,787.53 = 818,765.19 : x - Step 2: Convert to fraction form
1,507,090.62/2,079,787.53 = 818,765.19/x - Step 3: Cross multiply
1,507,090.62x = 2,079,787.53 × 818,765.19 - Step 4: Simplify right side
1,507,090.62x = 1,702,857,632,160.08 - Step 5: Solve for x
x = 1,702,857,632,160.08/1,507,090.62 - Step 6: Final answer
x = 1,129,897.31
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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.