Finding the Fourth Proportional to 691,708.80, 1,036,173.66 and 344,446.08
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Solution
The fourth proportional to 691,708.80, 1,036,173.66 and 344,446.08 is: 515,977.18
Step by Step Solution
- Step 1: Write the proportion equation
691,708.80 : 1,036,173.66 = 344,446.08 : x - Step 2: Convert to fraction form
691,708.80/1,036,173.66 = 344,446.08/x - Step 3: Cross multiply
691,708.80x = 1,036,173.66 × 344,446.08 - Step 4: Simplify right side
691,708.80x = 356,905,955,386.25 - Step 5: Solve for x
x = 356,905,955,386.25/691,708.80 - Step 6: Final answer
x = 515,977.18
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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.