Finding the Fourth Proportional to 718,411.08, 1,077,616.62 and 318,957.96
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Solution
The fourth proportional to 718,411.08, 1,077,616.62 and 318,957.96 is: 478,436.94
Step by Step Solution
- Step 1: Write the proportion equation
718,411.08 : 1,077,616.62 = 318,957.96 : x - Step 2: Convert to fraction form
718,411.08/1,077,616.62 = 318,957.96/x - Step 3: Cross multiply
718,411.08x = 1,077,616.62 × 318,957.96 - Step 4: Simplify right side
718,411.08x = 343,714,398,777.30 - Step 5: Solve for x
x = 343,714,398,777.30/718,411.08 - Step 6: Final answer
x = 478,436.94
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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.