Finding the Fourth Proportional to 682,448.80, 1,023,721.80 and 209,133.40
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Solution
The fourth proportional to 682,448.80, 1,023,721.80 and 209,133.40 is: 313,714.99
Step by Step Solution
- Step 1: Write the proportion equation
682,448.80 : 1,023,721.80 = 209,133.40 : x - Step 2: Convert to fraction form
682,448.80/1,023,721.80 = 209,133.40/x - Step 3: Cross multiply
682,448.80x = 1,023,721.80 × 209,133.40 - Step 4: Simplify right side
682,448.80x = 214,094,420,688.12 - Step 5: Solve for x
x = 214,094,420,688.12/682,448.80 - Step 6: Final answer
x = 313,714.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.