Finding the Fourth Proportional to 948,925.62, 1,423,389.36 and 387,960.12
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Solution
The fourth proportional to 948,925.62, 1,423,389.36 and 387,960.12 is: 581,940.56
Step by Step Solution
- Step 1: Write the proportion equation
948,925.62 : 1,423,389.36 = 387,960.12 : x - Step 2: Convert to fraction form
948,925.62/1,423,389.36 = 387,960.12/x - Step 3: Cross multiply
948,925.62x = 1,423,389.36 × 387,960.12 - Step 4: Simplify right side
948,925.62x = 552,218,306,912.32 - Step 5: Solve for x
x = 552,218,306,912.32/948,925.62 - Step 6: Final answer
x = 581,940.56
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.