Finding the Fourth Proportional to 876,394.92, 1,209,480.30 and 494,282.28
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Solution
The fourth proportional to 876,394.92, 1,209,480.30 and 494,282.28 is: 682,140.74
Step by Step Solution
- Step 1: Write the proportion equation
876,394.92 : 1,209,480.30 = 494,282.28 : x - Step 2: Convert to fraction form
876,394.92/1,209,480.30 = 494,282.28/x - Step 3: Cross multiply
876,394.92x = 1,209,480.30 × 494,282.28 - Step 4: Simplify right side
876,394.92x = 597,824,680,299.08 - Step 5: Solve for x
x = 597,824,680,299.08/876,394.92 - Step 6: Final answer
x = 682,140.74
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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.