Finding the Fourth Proportional to 690,656.96, 1,035,983.84 and 217,383.68
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Solution
The fourth proportional to 690,656.96, 1,035,983.84 and 217,383.68 is: 326,075.02
Step by Step Solution
- Step 1: Write the proportion equation
690,656.96 : 1,035,983.84 = 217,383.68 : x - Step 2: Convert to fraction form
690,656.96/1,035,983.84 = 217,383.68/x - Step 3: Cross multiply
690,656.96x = 1,035,983.84 × 217,383.68 - Step 4: Simplify right side
690,656.96x = 225,205,979,559.73 - Step 5: Solve for x
x = 225,205,979,559.73/690,656.96 - Step 6: Final answer
x = 326,075.02
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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.