Finding the Fourth Proportional to 871,605.17, 1,202,927.49 and 489,705.77
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Solution
The fourth proportional to 871,605.17, 1,202,927.49 and 489,705.77 is: 675,857.09
Step by Step Solution
- Step 1: Write the proportion equation
871,605.17 : 1,202,927.49 = 489,705.77 : x - Step 2: Convert to fraction form
871,605.17/1,202,927.49 = 489,705.77/x - Step 3: Cross multiply
871,605.17x = 1,202,927.49 × 489,705.77 - Step 4: Simplify right side
871,605.17x = 589,080,532,744.62 - Step 5: Solve for x
x = 589,080,532,744.62/871,605.17 - Step 6: Final answer
x = 675,857.09
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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.