Finding the Fourth Proportional to 1,149,539.92, 1,586,363.98 and 666,385.12
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Solution
The fourth proportional to 1,149,539.92, 1,586,363.98 and 666,385.12 is: 919,610.82
Step by Step Solution
- Step 1: Write the proportion equation
1,149,539.92 : 1,586,363.98 = 666,385.12 : x - Step 2: Convert to fraction form
1,149,539.92/1,586,363.98 = 666,385.12/x - Step 3: Cross multiply
1,149,539.92x = 1,586,363.98 × 666,385.12 - Step 4: Simplify right side
1,149,539.92x = 1,057,129,351,175.98 - Step 5: Solve for x
x = 1,057,129,351,175.98/1,149,539.92 - Step 6: Final answer
x = 919,610.82
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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.