Finding the Fourth Proportional to 779,891.08, 1,076,252.40 and 422,195.08
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Solution
The fourth proportional to 779,891.08, 1,076,252.40 and 422,195.08 is: 582,630.68
Step by Step Solution
- Step 1: Write the proportion equation
779,891.08 : 1,076,252.40 = 422,195.08 : x - Step 2: Convert to fraction form
779,891.08/1,076,252.40 = 422,195.08/x - Step 3: Cross multiply
779,891.08x = 1,076,252.40 × 422,195.08 - Step 4: Simplify right side
779,891.08x = 454,388,468,118.19 - Step 5: Solve for x
x = 454,388,468,118.19/779,891.08 - Step 6: Final answer
x = 582,630.68
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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.