Finding the Fourth Proportional to 781,050.11, 1,171,153.88 and 354,353.09
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Solution
The fourth proportional to 781,050.11, 1,171,153.88 and 354,353.09 is: 531,338.51
Step by Step Solution
- Step 1: Write the proportion equation
781,050.11 : 1,171,153.88 = 354,353.09 : x - Step 2: Convert to fraction form
781,050.11/1,171,153.88 = 354,353.09/x - Step 3: Cross multiply
781,050.11x = 1,171,153.88 × 354,353.09 - Step 4: Simplify right side
781,050.11x = 415,001,997,399.61 - Step 5: Solve for x
x = 415,001,997,399.61/781,050.11 - Step 6: Final answer
x = 531,338.51
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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.