Finding the Fourth Proportional to 478,669.96, 660,803.70 and 370,998.28
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Solution
The fourth proportional to 478,669.96, 660,803.70 and 370,998.28 is: 512,162.99
Step by Step Solution
- Step 1: Write the proportion equation
478,669.96 : 660,803.70 = 370,998.28 : x - Step 2: Convert to fraction form
478,669.96/660,803.70 = 370,998.28/x - Step 3: Cross multiply
478,669.96x = 660,803.70 × 370,998.28 - Step 4: Simplify right side
478,669.96x = 245,157,036,117.64 - Step 5: Solve for x
x = 245,157,036,117.64/478,669.96 - Step 6: Final answer
x = 512,162.99
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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.