Finding the Fourth Proportional to 2,578,688.15, 3,868,027.99 and 685,429.61
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Solution
The fourth proportional to 2,578,688.15, 3,868,027.99 and 685,429.61 is: 1,028,143.28
Step by Step Solution
- Step 1: Write the proportion equation
2,578,688.15 : 3,868,027.99 = 685,429.61 : x - Step 2: Convert to fraction form
2,578,688.15/3,868,027.99 = 685,429.61/x - Step 3: Cross multiply
2,578,688.15x = 3,868,027.99 × 685,429.61 - Step 4: Simplify right side
2,578,688.15x = 2,651,260,895,601.07 - Step 5: Solve for x
x = 2,651,260,895,601.07/2,578,688.15 - Step 6: Final answer
x = 1,028,143.28
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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.