Finding the Fourth Proportional to 876,588.64, 1,209,691.44 and 474,179.68
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Solution
The fourth proportional to 876,588.64, 1,209,691.44 and 474,179.68 is: 654,367.48
Step by Step Solution
- Step 1: Write the proportion equation
876,588.64 : 1,209,691.44 = 474,179.68 : x - Step 2: Convert to fraction form
876,588.64/1,209,691.44 = 474,179.68/x - Step 3: Cross multiply
876,588.64x = 1,209,691.44 × 474,179.68 - Step 4: Simplify right side
876,588.64x = 573,611,099,917.94 - Step 5: Solve for x
x = 573,611,099,917.94/876,588.64 - Step 6: Final answer
x = 654,367.48
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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.