Finding the Fourth Proportional to 548,638.57, 757,122.35 and 306,925.18
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Solution
The fourth proportional to 548,638.57, 757,122.35 and 306,925.18 is: 423,557.38
Step by Step Solution
- Step 1: Write the proportion equation
548,638.57 : 757,122.35 = 306,925.18 : x - Step 2: Convert to fraction form
548,638.57/757,122.35 = 306,925.18/x - Step 3: Cross multiply
548,638.57x = 757,122.35 × 306,925.18 - Step 4: Simplify right side
548,638.57x = 232,379,913,555.77 - Step 5: Solve for x
x = 232,379,913,555.77/548,638.57 - Step 6: Final answer
x = 423,557.38
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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.