Finding the Fourth Proportional to 2,034,420.24, 2,807,188.20 and 1,218,432.72
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Solution
The fourth proportional to 2,034,420.24, 2,807,188.20 and 1,218,432.72 is: 1,681,250.45
Step by Step Solution
- Step 1: Write the proportion equation
2,034,420.24 : 2,807,188.20 = 1,218,432.72 : x - Step 2: Convert to fraction form
2,034,420.24/2,807,188.20 = 1,218,432.72/x - Step 3: Cross multiply
2,034,420.24x = 2,807,188.20 × 1,218,432.72 - Step 4: Simplify right side
2,034,420.24x = 3,420,369,954,077.90 - Step 5: Solve for x
x = 3,420,369,954,077.90/2,034,420.24 - Step 6: Final answer
x = 1,681,250.45
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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.