Finding the Fourth Proportional to 616,738.68, 851,052.42 and 374,987.70
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Solution
The fourth proportional to 616,738.68, 851,052.42 and 374,987.70 is: 517,454.47
Step by Step Solution
- Step 1: Write the proportion equation
616,738.68 : 851,052.42 = 374,987.70 : x - Step 2: Convert to fraction form
616,738.68/851,052.42 = 374,987.70/x - Step 3: Cross multiply
616,738.68x = 851,052.42 × 374,987.70 - Step 4: Simplify right side
616,738.68x = 319,134,189,555.23 - Step 5: Solve for x
x = 319,134,189,555.23/616,738.68 - Step 6: Final answer
x = 517,454.47
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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.