Finding the Fourth Proportional to 563,014.80, 777,016.29 and 321,333.99
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Solution
The fourth proportional to 563,014.80, 777,016.29 and 321,333.99 is: 443,472.79
Step by Step Solution
- Step 1: Write the proportion equation
563,014.80 : 777,016.29 = 321,333.99 : x - Step 2: Convert to fraction form
563,014.80/777,016.29 = 321,333.99/x - Step 3: Cross multiply
563,014.80x = 777,016.29 × 321,333.99 - Step 4: Simplify right side
563,014.80x = 249,681,744,760.70 - Step 5: Solve for x
x = 249,681,744,760.70/563,014.80 - Step 6: Final answer
x = 443,472.79
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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.