Finding the Fourth Proportional to 811,556.19, 1,119,958.62 and 505,756.19
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Solution
The fourth proportional to 811,556.19, 1,119,958.62 and 505,756.19 is: 697,950.44
Step by Step Solution
- Step 1: Write the proportion equation
811,556.19 : 1,119,958.62 = 505,756.19 : x - Step 2: Convert to fraction form
811,556.19/1,119,958.62 = 505,756.19/x - Step 3: Cross multiply
811,556.19x = 1,119,958.62 × 505,756.19 - Step 4: Simplify right side
811,556.19x = 566,425,999,009.07 - Step 5: Solve for x
x = 566,425,999,009.07/811,556.19 - Step 6: Final answer
x = 697,950.44
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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.