Finding the Fourth Proportional to 739,978.74, 1,021,173.84 and 400,446.99
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Solution
The fourth proportional to 739,978.74, 1,021,173.84 and 400,446.99 is: 552,618.57
Step by Step Solution
- Step 1: Write the proportion equation
739,978.74 : 1,021,173.84 = 400,446.99 : x - Step 2: Convert to fraction form
739,978.74/1,021,173.84 = 400,446.99/x - Step 3: Cross multiply
739,978.74x = 1,021,173.84 × 400,446.99 - Step 4: Simplify right side
739,978.74x = 408,925,990,494.74 - Step 5: Solve for x
x = 408,925,990,494.74/739,978.74 - Step 6: Final answer
x = 552,618.57
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.