Finding the Fourth Proportional to 528,749.80, 793,124.70 and 279,917.80
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Solution
The fourth proportional to 528,749.80, 793,124.70 and 279,917.80 is: 419,876.70
Step by Step Solution
- Step 1: Write the proportion equation
528,749.80 : 793,124.70 = 279,917.80 : x - Step 2: Convert to fraction form
528,749.80/793,124.70 = 279,917.80/x - Step 3: Cross multiply
528,749.80x = 793,124.70 × 279,917.80 - Step 4: Simplify right side
528,749.80x = 222,009,721,149.66 - Step 5: Solve for x
x = 222,009,721,149.66/528,749.80 - Step 6: Final answer
x = 419,876.70
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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.