Finding the Fourth Proportional to 847,378.13, 1,169,097.30 and 479,805.12
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Solution
The fourth proportional to 847,378.13, 1,169,097.30 and 479,805.12 is: 661,969.96
Step by Step Solution
- Step 1: Write the proportion equation
847,378.13 : 1,169,097.30 = 479,805.12 : x - Step 2: Convert to fraction form
847,378.13/1,169,097.30 = 479,805.12/x - Step 3: Cross multiply
847,378.13x = 1,169,097.30 × 479,805.12 - Step 4: Simplify right side
847,378.13x = 560,938,870,318.18 - Step 5: Solve for x
x = 560,938,870,318.18/847,378.13 - Step 6: Final answer
x = 661,969.96
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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.