Finding the Fourth Proportional to 828,639.94, 1,143,582.96 and 506,411.68
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Solution
The fourth proportional to 828,639.94, 1,143,582.96 and 506,411.68 is: 698,884.69
Step by Step Solution
- Step 1: Write the proportion equation
828,639.94 : 1,143,582.96 = 506,411.68 : x - Step 2: Convert to fraction form
828,639.94/1,143,582.96 = 506,411.68/x - Step 3: Cross multiply
828,639.94x = 1,143,582.96 × 506,411.68 - Step 4: Simplify right side
828,639.94x = 579,123,767,992.97 - Step 5: Solve for x
x = 579,123,767,992.97/828,639.94 - Step 6: Final answer
x = 698,884.69
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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.