Finding the Fourth Proportional to 1,255,031.38, 1,731,876.84 and 711,173.66
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Solution
The fourth proportional to 1,255,031.38, 1,731,876.84 and 711,173.66 is: 981,381.99
Step by Step Solution
- Step 1: Write the proportion equation
1,255,031.38 : 1,731,876.84 = 711,173.66 : x - Step 2: Convert to fraction form
1,255,031.38/1,731,876.84 = 711,173.66/x - Step 3: Cross multiply
1,255,031.38x = 1,731,876.84 × 711,173.66 - Step 4: Simplify right side
1,255,031.38x = 1,231,665,190,972.03 - Step 5: Solve for x
x = 1,231,665,190,972.03/1,255,031.38 - Step 6: Final answer
x = 981,381.99
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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.