Finding the Fourth Proportional to 1,006,816.30, 1,389,438.75 and 577,177.90
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Solution
The fourth proportional to 1,006,816.30, 1,389,438.75 and 577,177.90 is: 796,523.99
Step by Step Solution
- Step 1: Write the proportion equation
1,006,816.30 : 1,389,438.75 = 577,177.90 : x - Step 2: Convert to fraction form
1,006,816.30/1,389,438.75 = 577,177.90/x - Step 3: Cross multiply
1,006,816.30x = 1,389,438.75 × 577,177.90 - Step 4: Simplify right side
1,006,816.30x = 801,953,339,903.63 - Step 5: Solve for x
x = 801,953,339,903.63/1,006,816.30 - Step 6: Final answer
x = 796,523.99
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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.