Finding the Fourth Proportional to 552,436.12, 762,354.30 and 310,718.62
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Solution
The fourth proportional to 552,436.12, 762,354.30 and 310,718.62 is: 428,787.45
Step by Step Solution
- Step 1: Write the proportion equation
552,436.12 : 762,354.30 = 310,718.62 : x - Step 2: Convert to fraction form
552,436.12/762,354.30 = 310,718.62/x - Step 3: Cross multiply
552,436.12x = 762,354.30 × 310,718.62 - Step 4: Simplify right side
552,436.12x = 236,877,676,047.07 - Step 5: Solve for x
x = 236,877,676,047.07/552,436.12 - Step 6: Final answer
x = 428,787.45
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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.