Finding the Fourth Proportional to 1,216,267.92, 1,678,496.99 and 807,665.18
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Solution
The fourth proportional to 1,216,267.92, 1,678,496.99 and 807,665.18 is: 1,114,609.32
Step by Step Solution
- Step 1: Write the proportion equation
1,216,267.92 : 1,678,496.99 = 807,665.18 : x - Step 2: Convert to fraction form
1,216,267.92/1,678,496.99 = 807,665.18/x - Step 3: Cross multiply
1,216,267.92x = 1,678,496.99 × 807,665.18 - Step 4: Simplify right side
1,216,267.92x = 1,355,663,561,127.00 - Step 5: Solve for x
x = 1,355,663,561,127.00/1,216,267.92 - Step 6: Final answer
x = 1,114,609.32
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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.