Finding the Fourth Proportional to 727,428.87, 1,003,882.88 and 405,138.99
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Solution
The fourth proportional to 727,428.87, 1,003,882.88 and 405,138.99 is: 559,109.09
Step by Step Solution
- Step 1: Write the proportion equation
727,428.87 : 1,003,882.88 = 405,138.99 : x - Step 2: Convert to fraction form
727,428.87/1,003,882.88 = 405,138.99/x - Step 3: Cross multiply
727,428.87x = 1,003,882.88 × 405,138.99 - Step 4: Simplify right side
727,428.87x = 406,712,094,055.80 - Step 5: Solve for x
x = 406,712,094,055.80/727,428.87 - Step 6: Final answer
x = 559,109.09
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.