Finding the Fourth Proportional to 760,432.16, 1,049,383.68 and 420,893.12
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Solution
The fourth proportional to 760,432.16, 1,049,383.68 and 420,893.12 is: 580,825.48
Step by Step Solution
- Step 1: Write the proportion equation
760,432.16 : 1,049,383.68 = 420,893.12 : x - Step 2: Convert to fraction form
760,432.16/1,049,383.68 = 420,893.12/x - Step 3: Cross multiply
760,432.16x = 1,049,383.68 × 420,893.12 - Step 4: Simplify right side
760,432.16x = 441,678,371,152.28 - Step 5: Solve for x
x = 441,678,371,152.28/760,432.16 - Step 6: Final answer
x = 580,825.48
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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.