Finding the Fourth Proportional to 788,883.40, 1,183,325.10 and 489,701.80
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Solution
The fourth proportional to 788,883.40, 1,183,325.10 and 489,701.80 is: 734,552.70
Step by Step Solution
- Step 1: Write the proportion equation
788,883.40 : 1,183,325.10 = 489,701.80 : x - Step 2: Convert to fraction form
788,883.40/1,183,325.10 = 489,701.80/x - Step 3: Cross multiply
788,883.40x = 1,183,325.10 × 489,701.80 - Step 4: Simplify right side
788,883.40x = 579,476,431,455.18 - Step 5: Solve for x
x = 579,476,431,455.18/788,883.40 - Step 6: Final answer
x = 734,552.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.