Finding the Fourth Proportional to 2,081,148.78, 2,871,996.84 and 1,163,416.62
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Solution
The fourth proportional to 2,081,148.78, 2,871,996.84 and 1,163,416.62 is: 1,605,521.38
Step by Step Solution
- Step 1: Write the proportion equation
2,081,148.78 : 2,871,996.84 = 1,163,416.62 : x - Step 2: Convert to fraction form
2,081,148.78/2,871,996.84 = 1,163,416.62/x - Step 3: Cross multiply
2,081,148.78x = 2,871,996.84 × 1,163,416.62 - Step 4: Simplify right side
2,081,148.78x = 3,341,328,856,243.48 - Step 5: Solve for x
x = 3,341,328,856,243.48/2,081,148.78 - Step 6: Final answer
x = 1,605,521.38
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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.