Finding the Fourth Proportional to 391,035.84, 539,890.68 and 263,664.96
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Solution
The fourth proportional to 391,035.84, 539,890.68 and 263,664.96 is: 364,033.78
Step by Step Solution
- Step 1: Write the proportion equation
391,035.84 : 539,890.68 = 263,664.96 : x - Step 2: Convert to fraction form
391,035.84/539,890.68 = 263,664.96/x - Step 3: Cross multiply
391,035.84x = 539,890.68 × 263,664.96 - Step 4: Simplify right side
391,035.84x = 142,350,254,546.57 - Step 5: Solve for x
x = 142,350,254,546.57/391,035.84 - Step 6: Final answer
x = 364,033.78
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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.