Finding the Fourth Proportional to 689,221.93, 1,031,716.73 and 624,268.03
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Solution
The fourth proportional to 689,221.93, 1,031,716.73 and 624,268.03 is: 934,485.31
Step by Step Solution
- Step 1: Write the proportion equation
689,221.93 : 1,031,716.73 = 624,268.03 : x - Step 2: Convert to fraction form
689,221.93/1,031,716.73 = 624,268.03/x - Step 3: Cross multiply
689,221.93x = 1,031,716.73 × 624,268.03 - Step 4: Simplify right side
689,221.93x = 644,067,770,555.14 - Step 5: Solve for x
x = 644,067,770,555.14/689,221.93 - Step 6: Final answer
x = 934,485.31
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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.