Finding the Fourth Proportional to 747,631.68, 1,031,731.44 and 408,099.96
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Solution
The fourth proportional to 747,631.68, 1,031,731.44 and 408,099.96 is: 563,177.79
Step by Step Solution
- Step 1: Write the proportion equation
747,631.68 : 1,031,731.44 = 408,099.96 : x - Step 2: Convert to fraction form
747,631.68/1,031,731.44 = 408,099.96/x - Step 3: Cross multiply
747,631.68x = 1,031,731.44 × 408,099.96 - Step 4: Simplify right side
747,631.68x = 421,049,559,394.74 - Step 5: Solve for x
x = 421,049,559,394.74/747,631.68 - Step 6: Final answer
x = 563,177.79
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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.