Finding the Fourth Proportional to 1,393,449.40, 2,092,118.10 and 891,119.80
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Solution
The fourth proportional to 1,393,449.40, 2,092,118.10 and 891,119.80 is: 1,337,922.90
Step by Step Solution
- Step 1: Write the proportion equation
1,393,449.40 : 2,092,118.10 = 891,119.80 : x - Step 2: Convert to fraction form
1,393,449.40/2,092,118.10 = 891,119.80/x - Step 3: Cross multiply
1,393,449.40x = 2,092,118.10 × 891,119.80 - Step 4: Simplify right side
1,393,449.40x = 1,864,327,862,848.38 - Step 5: Solve for x
x = 1,864,327,862,848.38/1,393,449.40 - Step 6: Final answer
x = 1,337,922.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.