Finding the Fourth Proportional to 871,602.84, 1,202,680.98 and 489,556.44
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Solution
The fourth proportional to 871,602.84, 1,202,680.98 and 489,556.44 is: 675,514.34
Step by Step Solution
- Step 1: Write the proportion equation
871,602.84 : 1,202,680.98 = 489,556.44 : x - Step 2: Convert to fraction form
871,602.84/1,202,680.98 = 489,556.44/x - Step 3: Cross multiply
871,602.84x = 1,202,680.98 × 489,556.44 - Step 4: Simplify right side
871,602.84x = 588,780,219,024.51 - Step 5: Solve for x
x = 588,780,219,024.51/871,602.84 - Step 6: Final answer
x = 675,514.34
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1.5x scale
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.