Finding the Fourth Proportional to 664,431.80, 995,459.70 and 404,295.80
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Solution
The fourth proportional to 664,431.80, 995,459.70 and 404,295.80 is: 605,720.82
Step by Step Solution
- Step 1: Write the proportion equation
664,431.80 : 995,459.70 = 404,295.80 : x - Step 2: Convert to fraction form
664,431.80/995,459.70 = 404,295.80/x - Step 3: Cross multiply
664,431.80x = 995,459.70 × 404,295.80 - Step 4: Simplify right side
664,431.80x = 402,460,175,779.26 - Step 5: Solve for x
x = 402,460,175,779.26/664,431.80 - Step 6: Final answer
x = 605,720.82
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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.