Finding the Fourth Proportional to 811,006.70, 1,119,141.16 and 448,402.10
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Solution
The fourth proportional to 811,006.70, 1,119,141.16 and 448,402.10 is: 618,768.31
Step by Step Solution
- Step 1: Write the proportion equation
811,006.70 : 1,119,141.16 = 448,402.10 : x - Step 2: Convert to fraction form
811,006.70/1,119,141.16 = 448,402.10/x - Step 3: Cross multiply
811,006.70x = 1,119,141.16 × 448,402.10 - Step 4: Simplify right side
811,006.70x = 501,825,239,623.73 - Step 5: Solve for x
x = 501,825,239,623.73/811,006.70 - Step 6: Final answer
x = 618,768.31
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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.