Finding the Fourth Proportional to 939,810.47, 1,296,879.39 and 531,995.09
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Solution
The fourth proportional to 939,810.47, 1,296,879.39 and 531,995.09 is: 734,119.79
Step by Step Solution
- Step 1: Write the proportion equation
939,810.47 : 1,296,879.39 = 531,995.09 : x - Step 2: Convert to fraction form
939,810.47/1,296,879.39 = 531,995.09/x - Step 3: Cross multiply
939,810.47x = 1,296,879.39 × 531,995.09 - Step 4: Simplify right side
939,810.47x = 689,933,461,317.80 - Step 5: Solve for x
x = 689,933,461,317.80/939,810.47 - Step 6: Final answer
x = 734,119.79
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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.