Finding the Fourth Proportional to 871,605.84, 1,202,685.12 and 489,559.44
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Solution
The fourth proportional to 871,605.84, 1,202,685.12 and 489,559.44 is: 675,518.48
Step by Step Solution
- Step 1: Write the proportion equation
871,605.84 : 1,202,685.12 = 489,559.44 : x - Step 2: Convert to fraction form
871,605.84/1,202,685.12 = 489,559.44/x - Step 3: Cross multiply
871,605.84x = 1,202,685.12 × 489,559.44 - Step 4: Simplify right side
871,605.84x = 588,785,853,843.53 - Step 5: Solve for x
x = 588,785,853,843.53/871,605.84 - Step 6: Final answer
x = 675,518.48
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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.