Finding the Fourth Proportional to 896,400.08, 1,236,640.20 and 641,658.32
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Solution
The fourth proportional to 896,400.08, 1,236,640.20 and 641,658.32 is: 885,207.95
Step by Step Solution
- Step 1: Write the proportion equation
896,400.08 : 1,236,640.20 = 641,658.32 : x - Step 2: Convert to fraction form
896,400.08/1,236,640.20 = 641,658.32/x - Step 3: Cross multiply
896,400.08x = 1,236,640.20 × 641,658.32 - Step 4: Simplify right side
896,400.08x = 793,500,473,176.46 - Step 5: Solve for x
x = 793,500,473,176.46/896,400.08 - Step 6: Final answer
x = 885,207.95
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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.