Finding the Fourth Proportional to 715,389.44, 1,073,250.12 and 209,930
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Solution
The fourth proportional to 715,389.44, 1,073,250.12 and 209,930 is: 314,943.70
Step by Step Solution
- Step 1: Write the proportion equation
715,389.44 : 1,073,250.12 = 209,930 : x - Step 2: Convert to fraction form
715,389.44/1,073,250.12 = 209,930/x - Step 3: Cross multiply
715,389.44x = 1,073,250.12 × 209,930 - Step 4: Simplify right side
715,389.44x = 225,307,397,691.60 - Step 5: Solve for x
x = 225,307,397,691.60/715,389.44 - Step 6: Final answer
x = 314,943.70
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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.