Finding the Fourth Proportional to 619,906.96, 929,860.44 and 199,478.08
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Solution
The fourth proportional to 619,906.96, 929,860.44 and 199,478.08 is: 299,217.12
Step by Step Solution
- Step 1: Write the proportion equation
619,906.96 : 929,860.44 = 199,478.08 : x - Step 2: Convert to fraction form
619,906.96/929,860.44 = 199,478.08/x - Step 3: Cross multiply
619,906.96x = 929,860.44 × 199,478.08 - Step 4: Simplify right side
619,906.96x = 185,486,775,239.16 - Step 5: Solve for x
x = 185,486,775,239.16/619,906.96 - Step 6: Final answer
x = 299,217.12
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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.