Finding the Fourth Proportional to 777,420.05, 1,166,468.91 and 272,343.34
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Solution
The fourth proportional to 777,420.05, 1,166,468.91 and 272,343.34 is: 408,633.71
Step by Step Solution
- Step 1: Write the proportion equation
777,420.05 : 1,166,468.91 = 272,343.34 : x - Step 2: Convert to fraction form
777,420.05/1,166,468.91 = 272,343.34/x - Step 3: Cross multiply
777,420.05x = 1,166,468.91 × 272,343.34 - Step 4: Simplify right side
777,420.05x = 317,680,038,955.56 - Step 5: Solve for x
x = 317,680,038,955.56/777,420.05 - Step 6: Final answer
x = 408,633.71
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.