Finding the Fourth Proportional to 988,543.40, 1,481,648.70 and 738,933.80
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Solution
The fourth proportional to 988,543.40, 1,481,648.70 and 738,933.80 is: 1,107,528.82
Step by Step Solution
- Step 1: Write the proportion equation
988,543.40 : 1,481,648.70 = 738,933.80 : x - Step 2: Convert to fraction form
988,543.40/1,481,648.70 = 738,933.80/x - Step 3: Cross multiply
988,543.40x = 1,481,648.70 × 738,933.80 - Step 4: Simplify right side
988,543.40x = 1,094,840,304,156.06 - Step 5: Solve for x
x = 1,094,840,304,156.06/988,543.40 - Step 6: Final answer
x = 1,107,528.82
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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.