Finding the Fourth Proportional to 451,486.21, 623,130.33 and 342,949.99
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Solution
The fourth proportional to 451,486.21, 623,130.33 and 342,949.99 is: 473,331.27
Step by Step Solution
- Step 1: Write the proportion equation
451,486.21 : 623,130.33 = 342,949.99 : x - Step 2: Convert to fraction form
451,486.21/623,130.33 = 342,949.99/x - Step 3: Cross multiply
451,486.21x = 623,130.33 × 342,949.99 - Step 4: Simplify right side
451,486.21x = 213,702,540,442.20 - Step 5: Solve for x
x = 213,702,540,442.20/451,486.21 - Step 6: Final answer
x = 473,331.27
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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.