Finding the Fourth Proportional to 527,205.42, 790,644.66 and 190,202.31
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Solution
The fourth proportional to 527,205.42, 790,644.66 and 190,202.31 is: 285,244.49
Step by Step Solution
- Step 1: Write the proportion equation
527,205.42 : 790,644.66 = 190,202.31 : x - Step 2: Convert to fraction form
527,205.42/790,644.66 = 190,202.31/x - Step 3: Cross multiply
527,205.42x = 790,644.66 × 190,202.31 - Step 4: Simplify right side
527,205.42x = 150,382,440,721.17 - Step 5: Solve for x
x = 150,382,440,721.17/527,205.42 - Step 6: Final answer
x = 285,244.49
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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.