Finding the Fourth Proportional to 554,013.81, 764,539.05 and 299,364.99
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Solution
The fourth proportional to 554,013.81, 764,539.05 and 299,364.99 is: 413,123.68
Step by Step Solution
- Step 1: Write the proportion equation
554,013.81 : 764,539.05 = 299,364.99 : x - Step 2: Convert to fraction form
554,013.81/764,539.05 = 299,364.99/x - Step 3: Cross multiply
554,013.81x = 764,539.05 × 299,364.99 - Step 4: Simplify right side
554,013.81x = 228,876,225,057.86 - Step 5: Solve for x
x = 228,876,225,057.86/554,013.81 - Step 6: Final answer
x = 413,123.68
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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.