Finding the Fourth Proportional to 873,998.28, 1,310,997.42 and 313,426.44
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Solution
The fourth proportional to 873,998.28, 1,310,997.42 and 313,426.44 is: 470,139.66
Step by Step Solution
- Step 1: Write the proportion equation
873,998.28 : 1,310,997.42 = 313,426.44 : x - Step 2: Convert to fraction form
873,998.28/1,310,997.42 = 313,426.44/x - Step 3: Cross multiply
873,998.28x = 1,310,997.42 × 313,426.44 - Step 4: Simplify right side
873,998.28x = 410,901,254,199.79 - Step 5: Solve for x
x = 410,901,254,199.79/873,998.28 - Step 6: Final answer
x = 470,139.66
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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.