Finding the Fourth Proportional to 951,235.12, 1,312,706.22 and 515,651.12
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Solution
The fourth proportional to 951,235.12, 1,312,706.22 and 515,651.12 is: 711,599.50
Step by Step Solution
- Step 1: Write the proportion equation
951,235.12 : 1,312,706.22 = 515,651.12 : x - Step 2: Convert to fraction form
951,235.12/1,312,706.22 = 515,651.12/x - Step 3: Cross multiply
951,235.12x = 1,312,706.22 × 515,651.12 - Step 4: Simplify right side
951,235.12x = 676,898,432,573.97 - Step 5: Solve for x
x = 676,898,432,573.97/951,235.12 - Step 6: Final answer
x = 711,599.50
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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.