Finding the Fourth Proportional to 1,129,986.43, 1,694,979.65 and 498,774.49
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Solution
The fourth proportional to 1,129,986.43, 1,694,979.65 and 498,774.49 is: 748,161.74
Step by Step Solution
- Step 1: Write the proportion equation
1,129,986.43 : 1,694,979.65 = 498,774.49 : x - Step 2: Convert to fraction form
1,129,986.43/1,694,979.65 = 498,774.49/x - Step 3: Cross multiply
1,129,986.43x = 1,694,979.65 × 498,774.49 - Step 4: Simplify right side
1,129,986.43x = 845,412,610,489.13 - Step 5: Solve for x
x = 845,412,610,489.13/1,129,986.43 - Step 6: Final answer
x = 748,161.74
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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.