Finding the Fourth Proportional to 739,772.20, 1,110,176.70 and 319,349.80
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Solution
The fourth proportional to 739,772.20, 1,110,176.70 and 319,349.80 is: 479,248.49
Step by Step Solution
- Step 1: Write the proportion equation
739,772.20 : 1,110,176.70 = 319,349.80 : x - Step 2: Convert to fraction form
739,772.20/1,110,176.70 = 319,349.80/x - Step 3: Cross multiply
739,772.20x = 1,110,176.70 × 319,349.80 - Step 4: Simplify right side
739,772.20x = 354,534,707,109.66 - Step 5: Solve for x
x = 354,534,707,109.66/739,772.20 - Step 6: Final answer
x = 479,248.49
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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.