Finding the Fourth Proportional to 623,754.64, 860,780.08 and 351,821.68
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Solution
The fourth proportional to 623,754.64, 860,780.08 and 351,821.68 is: 485,513.17
Step by Step Solution
- Step 1: Write the proportion equation
623,754.64 : 860,780.08 = 351,821.68 : x - Step 2: Convert to fraction form
623,754.64/860,780.08 = 351,821.68/x - Step 3: Cross multiply
623,754.64x = 860,780.08 × 351,821.68 - Step 4: Simplify right side
623,754.64x = 302,841,093,856.13 - Step 5: Solve for x
x = 302,841,093,856.13/623,754.64 - Step 6: Final answer
x = 485,513.17
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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.