Finding the Fourth Proportional to 827,687.79, 1,142,229.51 and 465,089.94
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Solution
The fourth proportional to 827,687.79, 1,142,229.51 and 465,089.94 is: 641,835.56
Step by Step Solution
- Step 1: Write the proportion equation
827,687.79 : 1,142,229.51 = 465,089.94 : x - Step 2: Convert to fraction form
827,687.79/1,142,229.51 = 465,089.94/x - Step 3: Cross multiply
827,687.79x = 1,142,229.51 × 465,089.94 - Step 4: Simplify right side
827,687.79x = 531,239,454,272.13 - Step 5: Solve for x
x = 531,239,454,272.13/827,687.79 - Step 6: Final answer
x = 641,835.56
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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.