Finding the Fourth Proportional to 817,716.13, 1,226,487.91 and 218,737.75
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Solution
The fourth proportional to 817,716.13, 1,226,487.91 and 218,737.75 is: 328,083.54
Step by Step Solution
- Step 1: Write the proportion equation
817,716.13 : 1,226,487.91 = 218,737.75 : x - Step 2: Convert to fraction form
817,716.13/1,226,487.91 = 218,737.75/x - Step 3: Cross multiply
817,716.13x = 1,226,487.91 × 218,737.75 - Step 4: Simplify right side
817,716.13x = 268,279,205,835.60 - Step 5: Solve for x
x = 268,279,205,835.60/817,716.13 - Step 6: Final answer
x = 328,083.54
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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.