Finding the Fourth Proportional to 624,129.63, 861,329.87 and 382,425.63
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Solution
The fourth proportional to 624,129.63, 861,329.87 and 382,425.63 is: 527,766.35
Step by Step Solution
- Step 1: Write the proportion equation
624,129.63 : 861,329.87 = 382,425.63 : x - Step 2: Convert to fraction form
624,129.63/861,329.87 = 382,425.63/x - Step 3: Cross multiply
624,129.63x = 861,329.87 × 382,425.63 - Step 4: Simplify right side
624,129.63x = 329,394,618,172.57 - Step 5: Solve for x
x = 329,394,618,172.57/624,129.63 - Step 6: Final answer
x = 527,766.35
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1.5x scale
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.