Finding the Fourth Proportional to 1,149,006.75, 1,585,678.53 and 639,709.13
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Solution
The fourth proportional to 1,149,006.75, 1,585,678.53 and 639,709.13 is: 882,825.99
Step by Step Solution
- Step 1: Write the proportion equation
1,149,006.75 : 1,585,678.53 = 639,709.13 : x - Step 2: Convert to fraction form
1,149,006.75/1,585,678.53 = 639,709.13/x - Step 3: Cross multiply
1,149,006.75x = 1,585,678.53 × 639,709.13 - Step 4: Simplify right side
1,149,006.75x = 1,014,373,024,957.59 - Step 5: Solve for x
x = 1,014,373,024,957.59/1,149,006.75 - Step 6: Final answer
x = 882,825.99
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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.