Finding the Fourth Proportional to 779,890.08, 1,076,251.02 and 422,194.08
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Solution
The fourth proportional to 779,890.08, 1,076,251.02 and 422,194.08 is: 582,629.30
Step by Step Solution
- Step 1: Write the proportion equation
779,890.08 : 1,076,251.02 = 422,194.08 : x - Step 2: Convert to fraction form
779,890.08/1,076,251.02 = 422,194.08/x - Step 3: Cross multiply
779,890.08x = 1,076,251.02 × 422,194.08 - Step 4: Simplify right side
779,890.08x = 454,386,809,237.96 - Step 5: Solve for x
x = 454,386,809,237.96/779,890.08 - Step 6: Final answer
x = 582,629.30
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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.