Finding the Fourth Proportional to 838,186.09, 1,156,695.92 and 456,211.96
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Solution
The fourth proportional to 838,186.09, 1,156,695.92 and 456,211.96 is: 629,572.02
Step by Step Solution
- Step 1: Write the proportion equation
838,186.09 : 1,156,695.92 = 456,211.96 : x - Step 2: Convert to fraction form
838,186.09/1,156,695.92 = 456,211.96/x - Step 3: Cross multiply
838,186.09x = 1,156,695.92 × 456,211.96 - Step 4: Simplify right side
838,186.09x = 527,698,512,787.20 - Step 5: Solve for x
x = 527,698,512,787.20/838,186.09 - Step 6: Final answer
x = 629,572.02
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1.5x scale
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.