Finding the Fourth Proportional to 2,019,949.18, 2,787,588.21 and 1,114,589.50
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Solution
The fourth proportional to 2,019,949.18, 2,787,588.21 and 1,114,589.50 is: 1,538,165.70
Step by Step Solution
- Step 1: Write the proportion equation
2,019,949.18 : 2,787,588.21 = 1,114,589.50 : x - Step 2: Convert to fraction form
2,019,949.18/2,787,588.21 = 1,114,589.50/x - Step 3: Cross multiply
2,019,949.18x = 2,787,588.21 × 1,114,589.50 - Step 4: Simplify right side
2,019,949.18x = 3,107,016,549,189.80 - Step 5: Solve for x
x = 3,107,016,549,189.80/2,019,949.18 - Step 6: Final answer
x = 1,538,165.70
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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.