Finding the Fourth Proportional to 808,318.68, 1,115,454.08 and 445,757.80
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Solution
The fourth proportional to 808,318.68, 1,115,454.08 and 445,757.80 is: 615,131.59
Step by Step Solution
- Step 1: Write the proportion equation
808,318.68 : 1,115,454.08 = 445,757.80 : x - Step 2: Convert to fraction form
808,318.68/1,115,454.08 = 445,757.80/x - Step 3: Cross multiply
808,318.68x = 1,115,454.08 × 445,757.80 - Step 4: Simplify right side
808,318.68x = 497,222,356,701.82 - Step 5: Solve for x
x = 497,222,356,701.82/808,318.68 - Step 6: Final answer
x = 615,131.59
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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.