Finding the Fourth Proportional to 871,651.56, 1,202,871.90 and 489,670.08
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Solution
The fourth proportional to 871,651.56, 1,202,871.90 and 489,670.08 is: 675,740.64
Step by Step Solution
- Step 1: Write the proportion equation
871,651.56 : 1,202,871.90 = 489,670.08 : x - Step 2: Convert to fraction form
871,651.56/1,202,871.90 = 489,670.08/x - Step 3: Cross multiply
871,651.56x = 1,202,871.90 × 489,670.08 - Step 4: Simplify right side
871,651.56x = 589,010,379,502.75 - Step 5: Solve for x
x = 589,010,379,502.75/871,651.56 - Step 6: Final answer
x = 675,740.64
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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.