Finding the Fourth Proportional to 478,484.99, 660,336.83 and 274,534.02
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Solution
The fourth proportional to 478,484.99, 660,336.83 and 274,534.02 is: 378,872.75
Step by Step Solution
- Step 1: Write the proportion equation
478,484.99 : 660,336.83 = 274,534.02 : x - Step 2: Convert to fraction form
478,484.99/660,336.83 = 274,534.02/x - Step 3: Cross multiply
478,484.99x = 660,336.83 × 274,534.02 - Step 4: Simplify right side
478,484.99x = 181,284,924,150.79 - Step 5: Solve for x
x = 181,284,924,150.79/478,484.99 - Step 6: Final answer
x = 378,872.75
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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.