Finding the Fourth Proportional to 743,137.29, 1,114,420.68 and 316,402.56
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Solution
The fourth proportional to 743,137.29, 1,114,420.68 and 316,402.56 is: 474,482.39
Step by Step Solution
- Step 1: Write the proportion equation
743,137.29 : 1,114,420.68 = 316,402.56 : x - Step 2: Convert to fraction form
743,137.29/1,114,420.68 = 316,402.56/x - Step 3: Cross multiply
743,137.29x = 1,114,420.68 × 316,402.56 - Step 4: Simplify right side
743,137.29x = 352,605,556,068.94 - Step 5: Solve for x
x = 352,605,556,068.94/743,137.29 - Step 6: Final answer
x = 474,482.39
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.