Finding the Fourth Proportional to 1,985,293.92, 2,740,192.29 and 1,126,356.96
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Solution
The fourth proportional to 1,985,293.92, 2,740,192.29 and 1,126,356.96 is: 1,554,648.72
Step by Step Solution
- Step 1: Write the proportion equation
1,985,293.92 : 2,740,192.29 = 1,126,356.96 : x - Step 2: Convert to fraction form
1,985,293.92/2,740,192.29 = 1,126,356.96/x - Step 3: Cross multiply
1,985,293.92x = 2,740,192.29 × 1,126,356.96 - Step 4: Simplify right side
1,985,293.92x = 3,086,434,657,579.84 - Step 5: Solve for x
x = 3,086,434,657,579.84/1,985,293.92 - Step 6: Final answer
x = 1,554,648.72
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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.