Finding the Fourth Proportional to 624,276.11, 861,518.36 and 379,178.08
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Solution
The fourth proportional to 624,276.11, 861,518.36 and 379,178.08 is: 523,276.27
Step by Step Solution
- Step 1: Write the proportion equation
624,276.11 : 861,518.36 = 379,178.08 : x - Step 2: Convert to fraction form
624,276.11/861,518.36 = 379,178.08/x - Step 3: Cross multiply
624,276.11x = 861,518.36 × 379,178.08 - Step 4: Simplify right side
624,276.11x = 326,668,876,423.70 - Step 5: Solve for x
x = 326,668,876,423.70/624,276.11 - Step 6: Final answer
x = 523,276.27
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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.