Finding the Fourth Proportional to 5,091,490.80, 7,637,236.20 and 4,398,649.20
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Solution
The fourth proportional to 5,091,490.80, 7,637,236.20 and 4,398,649.20 is: 6,597,973.80
Step by Step Solution
- Step 1: Write the proportion equation
5,091,490.80 : 7,637,236.20 = 4,398,649.20 : x - Step 2: Convert to fraction form
5,091,490.80/7,637,236.20 = 4,398,649.20/x - Step 3: Cross multiply
5,091,490.80x = 7,637,236.20 × 4,398,649.20 - Step 4: Simplify right side
5,091,490.80x = 33,593,522,901,341.04 - Step 5: Solve for x
x = 33,593,522,901,341.04/5,091,490.80 - Step 6: Final answer
x = 6,597,973.80
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.