Finding the Fourth Proportional to 817,715.13, 1,226,486.42 and 218,736.75
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Solution
The fourth proportional to 817,715.13, 1,226,486.42 and 218,736.75 is: 328,082.05
Step by Step Solution
- Step 1: Write the proportion equation
817,715.13 : 1,226,486.42 = 218,736.75 : x - Step 2: Convert to fraction form
817,715.13/1,226,486.42 = 218,736.75/x - Step 3: Cross multiply
817,715.13x = 1,226,486.42 × 218,736.75 - Step 4: Simplify right side
817,715.13x = 268,277,652,336.25 - Step 5: Solve for x
x = 268,277,652,336.25/817,715.13 - Step 6: Final answer
x = 328,082.05
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.