Finding the Fourth Proportional to 1,439,542.32, 1,986,632.28 and 827,893.68
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Solution
The fourth proportional to 1,439,542.32, 1,986,632.28 and 827,893.68 is: 1,142,530.02
Step by Step Solution
- Step 1: Write the proportion equation
1,439,542.32 : 1,986,632.28 = 827,893.68 : x - Step 2: Convert to fraction form
1,439,542.32/1,986,632.28 = 827,893.68/x - Step 3: Cross multiply
1,439,542.32x = 1,986,632.28 × 827,893.68 - Step 4: Simplify right side
1,439,542.32x = 1,644,720,309,095.99 - Step 5: Solve for x
x = 1,644,720,309,095.99/1,439,542.32 - Step 6: Final answer
x = 1,142,530.02
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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.