Finding the Fourth Proportional to 2,762,612.12, 3,811,898.63 and 1,538,887.19
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Solution
The fourth proportional to 2,762,612.12, 3,811,898.63 and 1,538,887.19 is: 2,123,382.40
Step by Step Solution
- Step 1: Write the proportion equation
2,762,612.12 : 3,811,898.63 = 1,538,887.19 : x - Step 2: Convert to fraction form
2,762,612.12/3,811,898.63 = 1,538,887.19/x - Step 3: Cross multiply
2,762,612.12x = 3,811,898.63 × 1,538,887.19 - Step 4: Simplify right side
2,762,612.12x = 5,866,081,957,908.59 - Step 5: Solve for x
x = 5,866,081,957,908.59/2,762,612.12 - Step 6: Final answer
x = 2,123,382.40
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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.