Finding the Fourth Proportional to 2,681,909.20, 4,019,364.60 and 1,242,425.80
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Solution
The fourth proportional to 2,681,909.20, 4,019,364.60 and 1,242,425.80 is: 1,862,017.65
Step by Step Solution
- Step 1: Write the proportion equation
2,681,909.20 : 4,019,364.60 = 1,242,425.80 : x - Step 2: Convert to fraction form
2,681,909.20/4,019,364.60 = 1,242,425.80/x - Step 3: Cross multiply
2,681,909.20x = 4,019,364.60 × 1,242,425.80 - Step 4: Simplify right side
2,681,909.20x = 4,993,762,278,646.68 - Step 5: Solve for x
x = 4,993,762,278,646.68/2,681,909.20 - Step 6: Final answer
x = 1,862,017.65
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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.