Finding the Fourth Proportional to 451,485.21, 623,128.95 and 342,948.99
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Solution
The fourth proportional to 451,485.21, 623,128.95 and 342,948.99 is: 473,329.89
Step by Step Solution
- Step 1: Write the proportion equation
451,485.21 : 623,128.95 = 342,948.99 : x - Step 2: Convert to fraction form
451,485.21/623,128.95 = 342,948.99/x - Step 3: Cross multiply
451,485.21x = 623,128.95 × 342,948.99 - Step 4: Simplify right side
451,485.21x = 213,701,444,042.26 - Step 5: Solve for x
x = 213,701,444,042.26/451,485.21 - Step 6: Final answer
x = 473,329.89
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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.