Finding the Fourth Proportional to 1,278,549.84, 1,765,062.06 and 933,998.92
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Solution
The fourth proportional to 1,278,549.84, 1,765,062.06 and 933,998.92 is: 1,289,403.05
Step by Step Solution
- Step 1: Write the proportion equation
1,278,549.84 : 1,765,062.06 = 933,998.92 : x - Step 2: Convert to fraction form
1,278,549.84/1,765,062.06 = 933,998.92/x - Step 3: Cross multiply
1,278,549.84x = 1,765,062.06 × 933,998.92 - Step 4: Simplify right side
1,278,549.84x = 1,648,566,057,772.98 - Step 5: Solve for x
x = 1,648,566,057,772.98/1,278,549.84 - Step 6: Final answer
x = 1,289,403.05
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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.