Finding the Fourth Proportional to 3,187,489.56, 4,403,043.42 and 2,547,396.12
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Solution
The fourth proportional to 3,187,489.56, 4,403,043.42 and 2,547,396.12 is: 3,518,849.40
Step by Step Solution
- Step 1: Write the proportion equation
3,187,489.56 : 4,403,043.42 = 2,547,396.12 : x - Step 2: Convert to fraction form
3,187,489.56/4,403,043.42 = 2,547,396.12/x - Step 3: Cross multiply
3,187,489.56x = 4,403,043.42 × 2,547,396.12 - Step 4: Simplify right side
3,187,489.56x = 11,216,295,724,299.53 - Step 5: Solve for x
x = 11,216,295,724,299.53/3,187,489.56 - Step 6: Final answer
x = 3,518,849.40
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1.5x scale
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.