Finding the Fourth Proportional to 1,679,339.79, 2,519,009.17 and 542,269.28
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Solution
The fourth proportional to 1,679,339.79, 2,519,009.17 and 542,269.28 is: 813,403.75
Step by Step Solution
- Step 1: Write the proportion equation
1,679,339.79 : 2,519,009.17 = 542,269.28 : x - Step 2: Convert to fraction form
1,679,339.79/2,519,009.17 = 542,269.28/x - Step 3: Cross multiply
1,679,339.79x = 2,519,009.17 × 542,269.28 - Step 4: Simplify right side
1,679,339.79x = 1,365,981,288,929.30 - Step 5: Solve for x
x = 1,365,981,288,929.30/1,679,339.79 - Step 6: Final answer
x = 813,403.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.