Finding the Fourth Proportional to 1,308,251.70, 1,960,919.55 and 509,267.70
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Solution
The fourth proportional to 1,308,251.70, 1,960,919.55 and 509,267.70 is: 763,333.99
Step by Step Solution
- Step 1: Write the proportion equation
1,308,251.70 : 1,960,919.55 = 509,267.70 : x - Step 2: Convert to fraction form
1,308,251.70/1,960,919.55 = 509,267.70/x - Step 3: Cross multiply
1,308,251.70x = 1,960,919.55 × 509,267.70 - Step 4: Simplify right side
1,308,251.70x = 998,632,989,113.54 - Step 5: Solve for x
x = 998,632,989,113.54/1,308,251.70 - Step 6: Final answer
x = 763,333.99
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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.