Finding the Fourth Proportional to 623,911.29, 860,995.08 and 351,979.20
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Solution
The fourth proportional to 623,911.29, 860,995.08 and 351,979.20 is: 485,729.88
Step by Step Solution
- Step 1: Write the proportion equation
623,911.29 : 860,995.08 = 351,979.20 : x - Step 2: Convert to fraction form
623,911.29/860,995.08 = 351,979.20/x - Step 3: Cross multiply
623,911.29x = 860,995.08 × 351,979.20 - Step 4: Simplify right side
623,911.29x = 303,052,355,308.39 - Step 5: Solve for x
x = 303,052,355,308.39/623,911.29 - Step 6: Final answer
x = 485,729.88
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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.