Finding the Fourth Proportional to 899,317.08, 1,241,042.58 and 491,409.96
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Solution
The fourth proportional to 899,317.08, 1,241,042.58 and 491,409.96 is: 678,137.55
Step by Step Solution
- Step 1: Write the proportion equation
899,317.08 : 1,241,042.58 = 491,409.96 : x - Step 2: Convert to fraction form
899,317.08/1,241,042.58 = 491,409.96/x - Step 3: Cross multiply
899,317.08x = 1,241,042.58 × 491,409.96 - Step 4: Simplify right side
899,317.08x = 609,860,684,596.10 - Step 5: Solve for x
x = 609,860,684,596.10/899,317.08 - Step 6: Final answer
x = 678,137.55
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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.