Finding the Fourth Proportional to 4,118,646.28, 6,178,861.38 and 1,689,805.12
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Solution
The fourth proportional to 4,118,646.28, 6,178,861.38 and 1,689,805.12 is: 2,535,073.63
Step by Step Solution
- Step 1: Write the proportion equation
4,118,646.28 : 6,178,861.38 = 1,689,805.12 : x - Step 2: Convert to fraction form
4,118,646.28/6,178,861.38 = 1,689,805.12/x - Step 3: Cross multiply
4,118,646.28x = 6,178,861.38 × 1,689,805.12 - Step 4: Simplify right side
4,118,646.28x = 10,441,071,595,694.27 - Step 5: Solve for x
x = 10,441,071,595,694.27/4,118,646.28 - Step 6: Final answer
x = 2,535,073.63
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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.