Finding the Fourth Proportional to 428,998.70, 592,010.33 and 238,007.99
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Solution
The fourth proportional to 428,998.70, 592,010.33 and 238,007.99 is: 328,446.66
Step by Step Solution
- Step 1: Write the proportion equation
428,998.70 : 592,010.33 = 238,007.99 : x - Step 2: Convert to fraction form
428,998.70/592,010.33 = 238,007.99/x - Step 3: Cross multiply
428,998.70x = 592,010.33 × 238,007.99 - Step 4: Simplify right side
428,998.70x = 140,903,190,777.58 - Step 5: Solve for x
x = 140,903,190,777.58/428,998.70 - Step 6: Final answer
x = 328,446.66
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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.