Finding the Fourth Proportional to 746,343.88, 1,029,944.10 and 406,813.48
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Solution
The fourth proportional to 746,343.88, 1,029,944.10 and 406,813.48 is: 561,396.90
Step by Step Solution
- Step 1: Write the proportion equation
746,343.88 : 1,029,944.10 = 406,813.48 : x - Step 2: Convert to fraction form
746,343.88/1,029,944.10 = 406,813.48/x - Step 3: Cross multiply
746,343.88x = 1,029,944.10 × 406,813.48 - Step 4: Simplify right side
746,343.88x = 418,995,143,526.47 - Step 5: Solve for x
x = 418,995,143,526.47/746,343.88 - Step 6: Final answer
x = 561,396.90
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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.