Finding the Fourth Proportional to 492,780.20, 739,170.30 and 393,135.02
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Solution
The fourth proportional to 492,780.20, 739,170.30 and 393,135.02 is: 589,702.53
Step by Step Solution
- Step 1: Write the proportion equation
492,780.20 : 739,170.30 = 393,135.02 : x - Step 2: Convert to fraction form
492,780.20/739,170.30 = 393,135.02/x - Step 3: Cross multiply
492,780.20x = 739,170.30 × 393,135.02 - Step 4: Simplify right side
492,780.20x = 290,593,730,673.91 - Step 5: Solve for x
x = 290,593,730,673.91/492,780.20 - Step 6: Final answer
x = 589,702.53
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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.