Finding the Fourth Proportional to 642,759.93, 887,051.39 and 356,292.09
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Solution
The fourth proportional to 642,759.93, 887,051.39 and 356,292.09 is: 491,706.74
Step by Step Solution
- Step 1: Write the proportion equation
642,759.93 : 887,051.39 = 356,292.09 : x - Step 2: Convert to fraction form
642,759.93/887,051.39 = 356,292.09/x - Step 3: Cross multiply
642,759.93x = 887,051.39 × 356,292.09 - Step 4: Simplify right side
642,759.93x = 316,049,391,899.05 - Step 5: Solve for x
x = 316,049,391,899.05/642,759.93 - Step 6: Final answer
x = 491,706.74
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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.