Finding the Fourth Proportional to 762,817.68, 1,052,701.74 and 418,685.79
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Solution
The fourth proportional to 762,817.68, 1,052,701.74 and 418,685.79 is: 577,793.71
Step by Step Solution
- Step 1: Write the proportion equation
762,817.68 : 1,052,701.74 = 418,685.79 : x - Step 2: Convert to fraction form
762,817.68/1,052,701.74 = 418,685.79/x - Step 3: Cross multiply
762,817.68x = 1,052,701.74 × 418,685.79 - Step 4: Simplify right side
762,817.68x = 440,751,259,646.28 - Step 5: Solve for x
x = 440,751,259,646.28/762,817.68 - Step 6: Final answer
x = 577,793.71
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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.