Finding the Fourth Proportional to 1,278,548.84, 1,765,060.68 and 933,997.92
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Solution
The fourth proportional to 1,278,548.84, 1,765,060.68 and 933,997.92 is: 1,289,401.67
Step by Step Solution
- Step 1: Write the proportion equation
1,278,548.84 : 1,765,060.68 = 933,997.92 : x - Step 2: Convert to fraction form
1,278,548.84/1,765,060.68 = 933,997.92/x - Step 3: Cross multiply
1,278,548.84x = 1,765,060.68 × 933,997.92 - Step 4: Simplify right side
1,278,548.84x = 1,648,563,003,793.79 - Step 5: Solve for x
x = 1,648,563,003,793.79/1,278,548.84 - Step 6: Final answer
x = 1,289,401.67
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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.