Finding the Fourth Proportional to 391,858.77, 586,658.21 and 351,340.95
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Solution
The fourth proportional to 391,858.77, 586,658.21 and 351,340.95 is: 525,998.31
Step by Step Solution
- Step 1: Write the proportion equation
391,858.77 : 586,658.21 = 351,340.95 : x - Step 2: Convert to fraction form
391,858.77/586,658.21 = 351,340.95/x - Step 3: Cross multiply
391,858.77x = 586,658.21 × 351,340.95 - Step 4: Simplify right side
391,858.77x = 206,117,051,070.00 - Step 5: Solve for x
x = 206,117,051,070.00/391,858.77 - Step 6: Final answer
x = 525,998.31
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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.