Finding the Fourth Proportional to 699,341.15, 965,089.37 and 393,417.75
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Solution
The fourth proportional to 699,341.15, 965,089.37 and 393,417.75 is: 542,915.70
Step by Step Solution
- Step 1: Write the proportion equation
699,341.15 : 965,089.37 = 393,417.75 : x - Step 2: Convert to fraction form
699,341.15/965,089.37 = 393,417.75/x - Step 3: Cross multiply
699,341.15x = 965,089.37 × 393,417.75 - Step 4: Simplify right side
699,341.15x = 379,683,290,883.97 - Step 5: Solve for x
x = 379,683,290,883.97/699,341.15 - Step 6: Final answer
x = 542,915.70
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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.