Finding the Fourth Proportional to 1,248,422.44, 1,722,332.79 and 725,043.96
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Solution
The fourth proportional to 1,248,422.44, 1,722,332.79 and 725,043.96 is: 1,000,275.99
Step by Step Solution
- Step 1: Write the proportion equation
1,248,422.44 : 1,722,332.79 = 725,043.96 : x - Step 2: Convert to fraction form
1,248,422.44/1,722,332.79 = 725,043.96/x - Step 3: Cross multiply
1,248,422.44x = 1,722,332.79 × 725,043.96 - Step 4: Simplify right side
1,248,422.44x = 1,248,766,986,499.45 - Step 5: Solve for x
x = 1,248,766,986,499.45/1,248,422.44 - Step 6: Final answer
x = 1,000,275.99
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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.