Finding the Fourth Proportional to 509,365.51, 702,890.43 and 279,917.87
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Solution
The fourth proportional to 509,365.51, 702,890.43 and 279,917.87 is: 386,267.99
Step by Step Solution
- Step 1: Write the proportion equation
509,365.51 : 702,890.43 = 279,917.87 : x - Step 2: Convert to fraction form
509,365.51/702,890.43 = 279,917.87/x - Step 3: Cross multiply
509,365.51x = 702,890.43 × 279,917.87 - Step 4: Simplify right side
509,365.51x = 196,751,591,494.83 - Step 5: Solve for x
x = 196,751,591,494.83/509,365.51 - Step 6: Final answer
x = 386,267.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.