Finding the Fourth Proportional to 1,042,505.08, 1,438,638.67 and 577,349.32
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Solution
The fourth proportional to 1,042,505.08, 1,438,638.67 and 577,349.32 is: 796,731.90
Step by Step Solution
- Step 1: Write the proportion equation
1,042,505.08 : 1,438,638.67 = 577,349.32 : x - Step 2: Convert to fraction form
1,042,505.08/1,438,638.67 = 577,349.32/x - Step 3: Cross multiply
1,042,505.08x = 1,438,638.67 × 577,349.32 - Step 4: Simplify right side
1,042,505.08x = 830,597,057,672.74 - Step 5: Solve for x
x = 830,597,057,672.74/1,042,505.08 - Step 6: Final answer
x = 796,731.90
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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.