Finding the Fourth Proportional to 2,165,630.62, 2,988,534.08 and 1,198,740.20
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Solution
The fourth proportional to 2,165,630.62, 2,988,534.08 and 1,198,740.20 is: 1,654,241.45
Step by Step Solution
- Step 1: Write the proportion equation
2,165,630.62 : 2,988,534.08 = 1,198,740.20 : x - Step 2: Convert to fraction form
2,165,630.62/2,988,534.08 = 1,198,740.20/x - Step 3: Cross multiply
2,165,630.62x = 2,988,534.08 × 1,198,740.20 - Step 4: Simplify right side
2,165,630.62x = 3,582,475,940,766.02 - Step 5: Solve for x
x = 3,582,475,940,766.02/2,165,630.62 - Step 6: Final answer
x = 1,654,241.45
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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.