Finding the Fourth Proportional to 857,558.34, 1,287,108.49 and 458,540.18
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Solution
The fourth proportional to 857,558.34, 1,287,108.49 and 458,540.18 is: 688,222.52
Step by Step Solution
- Step 1: Write the proportion equation
857,558.34 : 1,287,108.49 = 458,540.18 : x - Step 2: Convert to fraction form
857,558.34/1,287,108.49 = 458,540.18/x - Step 3: Cross multiply
857,558.34x = 1,287,108.49 × 458,540.18 - Step 4: Simplify right side
857,558.34x = 590,190,958,684.13 - Step 5: Solve for x
x = 590,190,958,684.13/857,558.34 - Step 6: Final answer
x = 688,222.52
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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.