Finding the Fourth Proportional to 878,378.72, 1,212,028.56 and 496,266.08
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Solution
The fourth proportional to 878,378.72, 1,212,028.56 and 496,266.08 is: 684,771.44
Step by Step Solution
- Step 1: Write the proportion equation
878,378.72 : 1,212,028.56 = 496,266.08 : x - Step 2: Convert to fraction form
878,378.72/1,212,028.56 = 496,266.08/x - Step 3: Cross multiply
878,378.72x = 1,212,028.56 × 496,266.08 - Step 4: Simplify right side
878,378.72x = 601,488,656,259.10 - Step 5: Solve for x
x = 601,488,656,259.10/878,378.72 - Step 6: Final answer
x = 684,771.44
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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.