Finding the Fourth Proportional to 420,674.77, 631,051.83 and 326,010.99
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Solution
The fourth proportional to 420,674.77, 631,051.83 and 326,010.99 is: 489,047.23
Step by Step Solution
- Step 1: Write the proportion equation
420,674.77 : 631,051.83 = 326,010.99 : x - Step 2: Convert to fraction form
420,674.77/631,051.83 = 326,010.99/x - Step 3: Cross multiply
420,674.77x = 631,051.83 × 326,010.99 - Step 4: Simplify right side
420,674.77x = 205,729,831,839.61 - Step 5: Solve for x
x = 205,729,831,839.61/420,674.77 - Step 6: Final answer
x = 489,047.23
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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.