Finding the Fourth Proportional to 739,182.96, 1,020,070.20 and 399,651.12
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Solution
The fourth proportional to 739,182.96, 1,020,070.20 and 399,651.12 is: 551,517.31
Step by Step Solution
- Step 1: Write the proportion equation
739,182.96 : 1,020,070.20 = 399,651.12 : x - Step 2: Convert to fraction form
739,182.96/1,020,070.20 = 399,651.12/x - Step 3: Cross multiply
739,182.96x = 1,020,070.20 × 399,651.12 - Step 4: Simplify right side
739,182.96x = 407,672,197,908.62 - Step 5: Solve for x
x = 407,672,197,908.62/739,182.96 - Step 6: Final answer
x = 551,517.31
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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.