Finding the Fourth Proportional to 857,529.40, 1,183,382.49 and 470,336.92
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Solution
The fourth proportional to 857,529.40, 1,183,382.49 and 470,336.92 is: 649,060.52
Step by Step Solution
- Step 1: Write the proportion equation
857,529.40 : 1,183,382.49 = 470,336.92 : x - Step 2: Convert to fraction form
857,529.40/1,183,382.49 = 470,336.92/x - Step 3: Cross multiply
857,529.40x = 1,183,382.49 × 470,336.92 - Step 4: Simplify right side
857,529.40x = 556,588,475,528.53 - Step 5: Solve for x
x = 556,588,475,528.53/857,529.40 - Step 6: Final answer
x = 649,060.52
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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.