Finding the Fourth Proportional to 1,478,649.41, 2,218,964.85 and 519,107.87
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Solution
The fourth proportional to 1,478,649.41, 2,218,964.85 and 519,107.87 is: 779,009.62
Step by Step Solution
- Step 1: Write the proportion equation
1,478,649.41 : 2,218,964.85 = 519,107.87 : x - Step 2: Convert to fraction form
1,478,649.41/2,218,964.85 = 519,107.87/x - Step 3: Cross multiply
1,478,649.41x = 2,218,964.85 × 519,107.87 - Step 4: Simplify right side
1,478,649.41x = 1,151,882,105,793.55 - Step 5: Solve for x
x = 1,151,882,105,793.55/1,478,649.41 - Step 6: Final answer
x = 779,009.62
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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.