Finding the Fourth Proportional to 871,587.84, 1,202,660.28 and 489,541.44
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Solution
The fourth proportional to 871,587.84, 1,202,660.28 and 489,541.44 is: 675,493.64
Step by Step Solution
- Step 1: Write the proportion equation
871,587.84 : 1,202,660.28 = 489,541.44 : x - Step 2: Convert to fraction form
871,587.84/1,202,660.28 = 489,541.44/x - Step 3: Cross multiply
871,587.84x = 1,202,660.28 × 489,541.44 - Step 4: Simplify right side
871,587.84x = 588,752,045,302.00 - Step 5: Solve for x
x = 588,752,045,302.00/871,587.84 - Step 6: Final answer
x = 675,493.64
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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.