Finding the Fourth Proportional to 709,918.44, 979,190.27 and 480,374.67
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Solution
The fourth proportional to 709,918.44, 979,190.27 and 480,374.67 is: 662,580.63
Step by Step Solution
- Step 1: Write the proportion equation
709,918.44 : 979,190.27 = 480,374.67 : x - Step 2: Convert to fraction form
709,918.44/979,190.27 = 480,374.67/x - Step 3: Cross multiply
709,918.44x = 979,190.27 × 480,374.67 - Step 4: Simplify right side
709,918.44x = 470,378,206,578.44 - Step 5: Solve for x
x = 470,378,206,578.44/709,918.44 - Step 6: Final answer
x = 662,580.63
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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.