Finding the Fourth Proportional to 515,705.36, 711,704.76 and 343,325.84
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Solution
The fourth proportional to 515,705.36, 711,704.76 and 343,325.84 is: 473,810.54
Step by Step Solution
- Step 1: Write the proportion equation
515,705.36 : 711,704.76 = 343,325.84 : x - Step 2: Convert to fraction form
515,705.36/711,704.76 = 343,325.84/x - Step 3: Cross multiply
515,705.36x = 711,704.76 × 343,325.84 - Step 4: Simplify right side
515,705.36x = 244,346,634,559.00 - Step 5: Solve for x
x = 244,346,634,559.00/515,705.36 - Step 6: Final answer
x = 473,810.54
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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.