Finding the Fourth Proportional to 663,064.80, 995,464.44 and 393,684.72
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Solution
The fourth proportional to 663,064.80, 995,464.44 and 393,684.72 is: 591,041.99
Step by Step Solution
- Step 1: Write the proportion equation
663,064.80 : 995,464.44 = 393,684.72 : x - Step 2: Convert to fraction form
663,064.80/995,464.44 = 393,684.72/x - Step 3: Cross multiply
663,064.80x = 995,464.44 × 393,684.72 - Step 4: Simplify right side
663,064.80x = 391,899,139,331.36 - Step 5: Solve for x
x = 391,899,139,331.36/663,064.80 - Step 6: Final answer
x = 591,041.99
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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.