Finding the Fourth Proportional to 738,573.35, 1,107,978.08 and 312,113.24
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Solution
The fourth proportional to 738,573.35, 1,107,978.08 and 312,113.24 is: 468,219.75
Step by Step Solution
- Step 1: Write the proportion equation
738,573.35 : 1,107,978.08 = 312,113.24 : x - Step 2: Convert to fraction form
738,573.35/1,107,978.08 = 312,113.24/x - Step 3: Cross multiply
738,573.35x = 1,107,978.08 × 312,113.24 - Step 4: Simplify right side
738,573.35x = 345,814,629,607.16 - Step 5: Solve for x
x = 345,814,629,607.16/738,573.35 - Step 6: Final answer
x = 468,219.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.