Finding the Fourth Proportional to 939,427.73, 1,296,408.66 and 509,707.74
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Solution
The fourth proportional to 939,427.73, 1,296,408.66 and 509,707.74 is: 703,395.82
Step by Step Solution
- Step 1: Write the proportion equation
939,427.73 : 1,296,408.66 = 509,707.74 : x - Step 2: Convert to fraction form
939,427.73/1,296,408.66 = 509,707.74/x - Step 3: Cross multiply
939,427.73x = 1,296,408.66 × 509,707.74 - Step 4: Simplify right side
939,427.73x = 660,789,534,022.26 - Step 5: Solve for x
x = 660,789,534,022.26/939,427.73 - Step 6: Final answer
x = 703,395.82
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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.