Finding the Fourth Proportional to 605,837.80, 908,756.70 and 487,739.80
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Solution
The fourth proportional to 605,837.80, 908,756.70 and 487,739.80 is: 731,609.70
Step by Step Solution
- Step 1: Write the proportion equation
605,837.80 : 908,756.70 = 487,739.80 : x - Step 2: Convert to fraction form
605,837.80/908,756.70 = 487,739.80/x - Step 3: Cross multiply
605,837.80x = 908,756.70 × 487,739.80 - Step 4: Simplify right side
605,837.80x = 443,236,811,106.66 - Step 5: Solve for x
x = 443,236,811,106.66/605,837.80 - Step 6: Final answer
x = 731,609.70
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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.