Finding the Fourth Proportional to 811,398.14, 1,119,715.62 and 448,821.71
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Solution
The fourth proportional to 811,398.14, 1,119,715.62 and 448,821.71 is: 619,366.31
Step by Step Solution
- Step 1: Write the proportion equation
811,398.14 : 1,119,715.62 = 448,821.71 : x - Step 2: Convert to fraction form
811,398.14/1,119,715.62 = 448,821.71/x - Step 3: Cross multiply
811,398.14x = 1,119,715.62 × 448,821.71 - Step 4: Simplify right side
811,398.14x = 502,552,676,199.38 - Step 5: Solve for x
x = 502,552,676,199.38/811,398.14 - Step 6: Final answer
x = 619,366.31
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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.