Finding the Fourth Proportional to 751,782.08, 1,128,635.40 and 645,843.80
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Solution
The fourth proportional to 751,782.08, 1,128,635.40 and 645,843.80 is: 969,592.38
Step by Step Solution
- Step 1: Write the proportion equation
751,782.08 : 1,128,635.40 = 645,843.80 : x - Step 2: Convert to fraction form
751,782.08/1,128,635.40 = 645,843.80/x - Step 3: Cross multiply
751,782.08x = 1,128,635.40 × 645,843.80 - Step 4: Simplify right side
751,782.08x = 728,922,175,550.52 - Step 5: Solve for x
x = 728,922,175,550.52/751,782.08 - Step 6: Final answer
x = 969,592.38
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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.