Finding the Fourth Proportional to 885,436.40, 1,221,896.61 and 503,463.18
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Solution
The fourth proportional to 885,436.40, 1,221,896.61 and 503,463.18 is: 694,775.99
Step by Step Solution
- Step 1: Write the proportion equation
885,436.40 : 1,221,896.61 = 503,463.18 : x - Step 2: Convert to fraction form
885,436.40/1,221,896.61 = 503,463.18/x - Step 3: Cross multiply
885,436.40x = 1,221,896.61 × 503,463.18 - Step 4: Simplify right side
885,436.40x = 615,179,952,901.82 - Step 5: Solve for x
x = 615,179,952,901.82/885,436.40 - Step 6: Final answer
x = 694,775.99
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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.