Finding the Fourth Proportional to 721,064.21, 995,193.41 and 434,584.53
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Solution
The fourth proportional to 721,064.21, 995,193.41 and 434,584.53 is: 599,801.87
Step by Step Solution
- Step 1: Write the proportion equation
721,064.21 : 995,193.41 = 434,584.53 : x - Step 2: Convert to fraction form
721,064.21/995,193.41 = 434,584.53/x - Step 3: Cross multiply
721,064.21x = 995,193.41 × 434,584.53 - Step 4: Simplify right side
721,064.21x = 432,495,658,171.03 - Step 5: Solve for x
x = 432,495,658,171.03/721,064.21 - Step 6: Final answer
x = 599,801.87
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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.