Finding the Fourth Proportional to 1,636,214.40, 2,453,446.80 and 688,514.40
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Solution
The fourth proportional to 1,636,214.40, 2,453,446.80 and 688,514.40 is: 1,032,403.49
Step by Step Solution
- Step 1: Write the proportion equation
1,636,214.40 : 2,453,446.80 = 688,514.40 : x - Step 2: Convert to fraction form
1,636,214.40/2,453,446.80 = 688,514.40/x - Step 3: Cross multiply
1,636,214.40x = 2,453,446.80 × 688,514.40 - Step 4: Simplify right side
1,636,214.40x = 1,689,233,451,433.92 - Step 5: Solve for x
x = 1,689,233,451,433.92/1,636,214.40 - Step 6: Final answer
x = 1,032,403.49
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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.