Finding the Fourth Proportional to 810,398.68, 1,215,649.86 and 311,762.68
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Solution
The fourth proportional to 810,398.68, 1,215,649.86 and 311,762.68 is: 467,663.96
Step by Step Solution
- Step 1: Write the proportion equation
810,398.68 : 1,215,649.86 = 311,762.68 : x - Step 2: Convert to fraction form
810,398.68/1,215,649.86 = 311,762.68/x - Step 3: Cross multiply
810,398.68x = 1,215,649.86 × 311,762.68 - Step 4: Simplify right side
810,398.68x = 378,994,254,086.99 - Step 5: Solve for x
x = 378,994,254,086.99/810,398.68 - Step 6: Final answer
x = 467,663.96
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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.