Finding the Fourth Proportional to 1,621,411.20, 2,432,116.80 and 824,249.70
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Solution
The fourth proportional to 1,621,411.20, 2,432,116.80 and 824,249.70 is: 1,236,374.55
Step by Step Solution
- Step 1: Write the proportion equation
1,621,411.20 : 2,432,116.80 = 824,249.70 : x - Step 2: Convert to fraction form
1,621,411.20/2,432,116.80 = 824,249.70/x - Step 3: Cross multiply
1,621,411.20x = 2,432,116.80 × 824,249.70 - Step 4: Simplify right side
1,621,411.20x = 2,004,671,542,764.96 - Step 5: Solve for x
x = 2,004,671,542,764.96/1,621,411.20 - Step 6: Final answer
x = 1,236,374.55
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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.