Finding the Fourth Proportional to 808,318.62, 1,115,487.21 and 445,755.02
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Solution
The fourth proportional to 808,318.62, 1,115,487.21 and 445,755.02 is: 615,146.08
Step by Step Solution
- Step 1: Write the proportion equation
808,318.62 : 1,115,487.21 = 445,755.02 : x - Step 2: Convert to fraction form
808,318.62/1,115,487.21 = 445,755.02/x - Step 3: Cross multiply
808,318.62x = 1,115,487.21 × 445,755.02 - Step 4: Simplify right side
808,318.62x = 497,234,027,228.81 - Step 5: Solve for x
x = 497,234,027,228.81/808,318.62 - Step 6: Final answer
x = 615,146.08
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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.