Finding the Fourth Proportional to 822,646.96, 1,135,205.27 and 455,102.17
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Solution
The fourth proportional to 822,646.96, 1,135,205.27 and 455,102.17 is: 628,014.70
Step by Step Solution
- Step 1: Write the proportion equation
822,646.96 : 1,135,205.27 = 455,102.17 : x - Step 2: Convert to fraction form
822,646.96/1,135,205.27 = 455,102.17/x - Step 3: Cross multiply
822,646.96x = 1,135,205.27 × 455,102.17 - Step 4: Simplify right side
822,646.96x = 516,634,379,784.55 - Step 5: Solve for x
x = 516,634,379,784.55/822,646.96 - Step 6: Final answer
x = 628,014.70
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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.