Finding the Fourth Proportional to 624,280.12, 861,523.88 and 379,182.08
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Solution
The fourth proportional to 624,280.12, 861,523.88 and 379,182.08 is: 523,281.79
Step by Step Solution
- Step 1: Write the proportion equation
624,280.12 : 861,523.88 = 379,182.08 : x - Step 2: Convert to fraction form
624,280.12/861,523.88 = 379,182.08/x - Step 3: Cross multiply
624,280.12x = 861,523.88 × 379,182.08 - Step 4: Simplify right side
624,280.12x = 326,674,416,788.07 - Step 5: Solve for x
x = 326,674,416,788.07/624,280.12 - Step 6: Final answer
x = 523,281.79
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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.