Finding the Fourth Proportional to 399,790.80, 599,790.05 and 119,308.05
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Solution
The fourth proportional to 399,790.80, 599,790.05 and 119,308.05 is: 178,993.07
Step by Step Solution
- Step 1: Write the proportion equation
399,790.80 : 599,790.05 = 119,308.05 : x - Step 2: Convert to fraction form
399,790.80/599,790.05 = 119,308.05/x - Step 3: Cross multiply
399,790.80x = 599,790.05 × 119,308.05 - Step 4: Simplify right side
399,790.80x = 71,559,781,274.90 - Step 5: Solve for x
x = 71,559,781,274.90/399,790.80 - Step 6: Final answer
x = 178,993.07
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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.